{"id":100444,"date":"2025-04-30T02:22:15","date_gmt":"2025-04-30T02:22:15","guid":{"rendered":"https:\/\/www.dumpsbase.com\/freedumps\/?p=100444"},"modified":"2025-04-30T02:22:15","modified_gmt":"2025-04-30T02:22:15","slug":"jsa-41-01-dumps-v8-02-with-jsa-41-01-free-dumps-part-2-q41-q90-increase-your-score-in-the-actual-jsa-certified-associate-javascript-programmer-exam","status":"publish","type":"post","link":"https:\/\/www.dumpsbase.com\/freedumps\/jsa-41-01-dumps-v8-02-with-jsa-41-01-free-dumps-part-2-q41-q90-increase-your-score-in-the-actual-jsa-certified-associate-javascript-programmer-exam.html","title":{"rendered":"JSA-41-01 Dumps (V8.02) with JSA-41-01 Free Dumps (Part 2, Q41-Q90) &#8211; Increase Your Score in the Actual JSA &#8211; Certified Associate JavaScript Programmer Exam"},"content":{"rendered":"<p>You can believe that the JSA-41-01 dumps (V8.02) of DumpsBase are the best study materials, which can substantially strengthen your odds of triumph. We have shared the <a href=\"https:\/\/www.dumpsbase.com\/freedumps\/trustworthy-jsa-41-01-dumps-are-available-you-can-read-the-jsa-41-01-free-dumps-part-1-q1-q41-first-to-check-the-quality.html\"><em><strong>JSA-41-01 free dumps (Part 1, Q1-Q40)<\/strong><\/em><\/a> online to help you check the quality. From these demo questions, you can find that the JSA-41-01 dumps (V8.02) should be helpful to ensure your success. These dumps provide real exam questions and precise answers, allowing you to familiarize yourself with the exam format and main ideas. By using JSA-41-01 exam dumps, you acquire access to systematic study materials that include validated questions and results. These JSA-41-01 dumps help solidify your wisdom and refine your challenge-addressing skills, confirming you are well-prepared for the legitimate exam. Today, we continue to share the JSA-41-01 free dumps (Part 2, Q41-Q90) to help you read more before downloading our materials.<\/p>\n<h2>Below are the <em><span style=\"background-color: #ffff00;\">JSA-41-01 free dumps (Part 2, Q41-Q90)<\/span><\/em> for reading online:<\/h2>\n<script>\n\t  window.fbAsyncInit = function() {\n\t    FB.init({\n\t      appId            : '622169541470367',\n\t      autoLogAppEvents : true,\n\t      xfbml            : true,\n\t      version          : 'v3.1'\n\t    });\n\t  };\n\t\n\t  (function(d, s, id){\n\t     var js, fjs = d.getElementsByTagName(s)[0];\n\t     if (d.getElementById(id)) {return;}\n\t     js = d.createElement(s); js.id = id;\n\t     js.src = \"https:\/\/connect.facebook.net\/en_US\/sdk.js\";\n\t     fjs.parentNode.insertBefore(js, fjs);\n\t   }(document, 'script', 'facebook-jssdk'));\n\t<\/script><script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam9793\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.dumpsbase.com\/freedumps\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-9793\"><\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-9793\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-390684'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>Given the following JavaScript code snippet, what will be logged to the console? <br \/>\r<br>1. let myMap = new Map(); <br \/>\r<br>2. myMap.set('key1', 'value1'); <br \/>\r<br>3. myMap.set('key2', 'value2'); <br \/>\r<br>4. myMap.set('key1', 'updatedValue'); <br \/>\r<br>5. <br \/>\r<br>6. console.log(myMap.get('key1')); <br \/>\r<br>7. console.log(myMap.size);<\/div><input type='hidden' name='question_id[]' id='qID_1' value='390684' \/><input type='hidden' id='answerType390684' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390684[]' id='answer-id-1519399' class='answer   answerof-390684 ' value='1519399'   \/><label for='answer-id-1519399' id='answer-label-1519399' class=' answer'><span>undefined2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390684[]' id='answer-id-1519400' class='answer   answerof-390684 ' value='1519400'   \/><label for='answer-id-1519400' id='answer-label-1519400' class=' answer'><span>value12<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390684[]' id='answer-id-1519401' class='answer   answerof-390684 ' value='1519401'   \/><label for='answer-id-1519401' id='answer-label-1519401' class=' answer'><span>value13<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390684[]' id='answer-id-1519402' class='answer   answerof-390684 ' value='1519402'   \/><label for='answer-id-1519402' id='answer-label-1519402' class=' answer'><span>updatedValue2<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-390685'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>In JavaScript, you can copy objects using various methods. <br \/>\r<br>Which of the following functions correctly creates a deep copy of a given object?<\/div><input type='hidden' name='question_id[]' id='qID_2' value='390685' \/><input type='hidden' id='answerType390685' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390685[]' id='answer-id-1519403' class='answer   answerof-390685 ' value='1519403'   \/><label for='answer-id-1519403' id='answer-label-1519403' class=' answer'><span>function deepCopy(obj) { return {...obj};}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390685[]' id='answer-id-1519404' class='answer   answerof-390685 ' value='1519404'   \/><label for='answer-id-1519404' id='answer-label-1519404' class=' answer'><span>function deepCopy(obj) { return JSO<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390685[]' id='answer-id-1519405' class='answer   answerof-390685 ' value='1519405'   \/><label for='answer-id-1519405' id='answer-label-1519405' class=' answer'><span>parse(JSO<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390685[]' id='answer-id-1519406' class='answer   answerof-390685 ' value='1519406'   \/><label for='answer-id-1519406' id='answer-label-1519406' class=' answer'><span>stringify(obj));}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390685[]' id='answer-id-1519407' class='answer   answerof-390685 ' value='1519407'   \/><label for='answer-id-1519407' id='answer-label-1519407' class=' answer'><span>function deepCopy(obj) { return Object.assign({}, obj);}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390685[]' id='answer-id-1519408' class='answer   answerof-390685 ' value='1519408'   \/><label for='answer-id-1519408' id='answer-label-1519408' class=' answer'><span>function deepCopy(obj) { let copy = {}; for (let key in obj) { copy[key] = obj[key]; } return copy;}<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-390686'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>Given the following code snippet, what will be the output? <br \/>\r<br>1. let str1 = new String(&quot;apple&quot;); <br \/>\r<br>2. let str2 = new String(&quot;Apple&quot;); <br \/>\r<br>3. let result = str1 == str2; <br \/>\r<br>4. console.log(result);<\/div><input type='hidden' name='question_id[]' id='qID_3' value='390686' \/><input type='hidden' id='answerType390686' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390686[]' id='answer-id-1519409' class='answer   answerof-390686 ' value='1519409'   \/><label for='answer-id-1519409' id='answer-label-1519409' class=' answer'><span>false<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390686[]' id='answer-id-1519410' class='answer   answerof-390686 ' value='1519410'   \/><label for='answer-id-1519410' id='answer-label-1519410' class=' answer'><span>undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390686[]' id='answer-id-1519411' class='answer   answerof-390686 ' value='1519411'   \/><label for='answer-id-1519411' id='answer-label-1519411' class=' answer'><span>true<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390686[]' id='answer-id-1519412' class='answer   answerof-390686 ' value='1519412'   \/><label for='answer-id-1519412' id='answer-label-1519412' class=' answer'><span>null<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-390687'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>You need to load multiple resources for a dashboard, and each resource fetch depends on the result of the previous fetch. You decide to use async and await to ensure each fetch is completed before the next one starts. <br \/>\r<br>1. async function loadDashboardData() { <br \/>\r<br>2. try { <br \/>\r<br>3. const chartData = await loadChartData(); <br \/>\r<br>4. const userData = await loadUserData(chartData); <br \/>\r<br>5. const notificationData = await loadNotificationData(userData); <br \/>\r<br>6. console.log('Dashboard data loaded successfully:', { <br \/>\r<br>10. }); <br \/>\r<br>11. } catch (error) { <br \/>\r<br>12. console.error('Error loading dashboard data:', error); <br \/>\r<br>13. } <br \/>\r<br>14. } <br \/>\r<br>What is the primary reason for using async and await in this scenario?<\/div><input type='hidden' name='question_id[]' id='qID_4' value='390687' \/><input type='hidden' id='answerType390687' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390687[]' id='answer-id-1519413' class='answer   answerof-390687 ' value='1519413'   \/><label for='answer-id-1519413' id='answer-label-1519413' class=' answer'><span>To load all resources simultaneously.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390687[]' id='answer-id-1519414' class='answer   answerof-390687 ' value='1519414'   \/><label for='answer-id-1519414' id='answer-label-1519414' class=' answer'><span>To ensure each fetch operation completes before starting the next.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390687[]' id='answer-id-1519415' class='answer   answerof-390687 ' value='1519415'   \/><label for='answer-id-1519415' id='answer-label-1519415' class=' answer'><span>To improve the network speed of the fetch operations.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390687[]' id='answer-id-1519416' class='answer   answerof-390687 ' value='1519416'   \/><label for='answer-id-1519416' id='answer-label-1519416' class=' answer'><span>To catch errors individually for each fetch.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-390688'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>Consider the following code snippet in JavaScript: <br \/>\r<br>1. class Library { <br \/>\r<br>2. constructor() { <br \/>\r<br>3. this.books = []; <br \/>\r<br>4. } <br \/>\r<br>5. <br \/>\r<br>6. addBook(book) { <br \/>\r<br>7. this.books.push(book); <br \/>\r<br>8. } <br \/>\r<br>9. <br \/>\r<br>10. get totalBooks() { <br \/>\r<br>11. return this.books.length; <br \/>\r<br>12. } <br \/>\r<br>13. <br \/>\r<br>14. removeBook(title) { <br \/>\r<br>15. this.books = this.books.filter(book =&gt; book.title !== title); <br \/>\r<br>16. } <br \/>\r<br>17. } <br \/>\r<br>18. <br \/>\r<br>19. const library = new Library(); <br \/>\r<br>20. library.addBook({ title: 'Book A', author: 'Author A' }); <br \/>\r<br>21. library.addBook({ title: 'Book B', author: 'Author B' }); <br \/>\r<br>22. library.addBook({ title: 'Book C', author: 'Author C' }); <br \/>\r<br>23. library.removeBook('Book B'); <br \/>\r<br>24. console.log(library.totalBooks); <br \/>\r<br>What will be the output of the console.log(library.totalBooks) statement?<\/div><input type='hidden' name='question_id[]' id='qID_5' value='390688' \/><input type='hidden' id='answerType390688' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390688[]' id='answer-id-1519417' class='answer   answerof-390688 ' value='1519417'   \/><label for='answer-id-1519417' id='answer-label-1519417' class=' answer'><span>2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390688[]' id='answer-id-1519418' class='answer   answerof-390688 ' value='1519418'   \/><label for='answer-id-1519418' id='answer-label-1519418' class=' answer'><span>0<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390688[]' id='answer-id-1519419' class='answer   answerof-390688 ' value='1519419'   \/><label for='answer-id-1519419' id='answer-label-1519419' class=' answer'><span>1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390688[]' id='answer-id-1519420' class='answer   answerof-390688 ' value='1519420'   \/><label for='answer-id-1519420' id='answer-label-1519420' class=' answer'><span>3<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-390689'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>Consider the following JavaScript code snippet. <br \/>\r<br>Which two statements about the code are correct? <br \/>\r<br>1. class Product { <br \/>\r<br>2. constructor(name, price) { <br \/>\r<br>3. this.name = name; <br \/>\r<br>4. this.price = price; <br \/>\r<br>5. } <br \/>\r<br>6. <br \/>\r<br>7. discount(amount) { <br \/>\r<br>8. return this.price - amount; <br \/>\r<br>9. } <br \/>\r<br>10. } <br \/>\r<br>11. <br \/>\r<br>12. const product = new Product('Laptop', 1000); <br \/>\r<br>13. console.log(product.discount(100));<\/div><input type='hidden' name='question_id[]' id='qID_6' value='390689' \/><input type='hidden' id='answerType390689' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390689[]' id='answer-id-1519421' class='answer   answerof-390689 ' value='1519421'   \/><label for='answer-id-1519421' id='answer-label-1519421' class=' answer'><span>The Product class correctly defines a constructor to initialize name and price.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390689[]' id='answer-id-1519422' class='answer   answerof-390689 ' value='1519422'   \/><label for='answer-id-1519422' id='answer-label-1519422' class=' answer'><span>The discount method is incorrectly defined and will throw an error.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390689[]' id='answer-id-1519423' class='answer   answerof-390689 ' value='1519423'   \/><label for='answer-id-1519423' id='answer-label-1519423' class=' answer'><span>The product object is an instance of the Product class.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390689[]' id='answer-id-1519424' class='answer   answerof-390689 ' value='1519424'   \/><label for='answer-id-1519424' id='answer-label-1519424' class=' answer'><span>The constructor method should not be used to initialize name and price.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-390690'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>You have an array of task objects, each with a description and a completed status. You need to filter out the completed tasks and then create a new array that contains only the descriptions of the incomplete tasks. <br \/>\r<br>Which of the following code snippets correctly implements this logic using the spread operator? <br \/>\r<br>1. const tasks = [{ <br \/>\r<br>2. description: 'Task 1', <br \/>\r<br>3. completed: true <br \/>\r<br>4. }, <br \/>\r<br>5. { <br \/>\r<br>6. description: 'Task 2', <br \/>\r<br>7. completed: false <br \/>\r<br>8. }, <br \/>\r<br>9. { <br \/>\r<br>10. description: 'Task 3', <br \/>\r<br>11. completed: true <br \/>\r<br>12. }, <br \/>\r<br>13. { <br \/>\r<br>14. description: 'Task 4', <br \/>\r<br>15. completed: false <br \/>\r<br>16. } <br \/>\r<br>17. ]; <br \/>\r<br>18. <br \/>\r<br>19. const incompleteTasks = tasks.filter(task =&gt; !task.completed); <br \/>\r<br>20. const descriptions = [...incompleteTasks.map(task =&gt; task.description)]; <br \/>\r<br>21. console.log(descriptions);<\/div><input type='hidden' name='question_id[]' id='qID_7' value='390690' \/><input type='hidden' id='answerType390690' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390690[]' id='answer-id-1519425' class='answer   answerof-390690 ' value='1519425'   \/><label for='answer-id-1519425' id='answer-label-1519425' class=' answer'><span>['Task 2']<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390690[]' id='answer-id-1519426' class='answer   answerof-390690 ' value='1519426'   \/><label for='answer-id-1519426' id='answer-label-1519426' class=' answer'><span>['Task 2', 'Task 4']<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390690[]' id='answer-id-1519427' class='answer   answerof-390690 ' value='1519427'   \/><label for='answer-id-1519427' id='answer-label-1519427' class=' answer'><span>['Task 1', 'Task 2', 'Task 3', 'Task 4']<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390690[]' id='answer-id-1519428' class='answer   answerof-390690 ' value='1519428'   \/><label for='answer-id-1519428' id='answer-label-1519428' class=' answer'><span>['Task 1', 'Task 3']<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-390691'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>What will be the output of the following code? <br \/>\r<br>1. var result = (function() { <br \/>\r<br>2. var name = &quot;John Doe&quot;; <br \/>\r<br>3. return name; <br \/>\r<br>4. })(); <br \/>\r<br>5. <br \/>\r<br>6. console.log(result);<\/div><input type='hidden' name='question_id[]' id='qID_8' value='390691' \/><input type='hidden' id='answerType390691' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390691[]' id='answer-id-1519429' class='answer   answerof-390691 ' value='1519429'   \/><label for='answer-id-1519429' id='answer-label-1519429' class=' answer'><span>undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390691[]' id='answer-id-1519430' class='answer   answerof-390691 ' value='1519430'   \/><label for='answer-id-1519430' id='answer-label-1519430' class=' answer'><span>ReferenceError: name is not defined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390691[]' id='answer-id-1519431' class='answer   answerof-390691 ' value='1519431'   \/><label for='answer-id-1519431' id='answer-label-1519431' class=' answer'><span>null<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390691[]' id='answer-id-1519432' class='answer   answerof-390691 ' value='1519432'   \/><label for='answer-id-1519432' id='answer-label-1519432' class=' answer'><span>John Doe<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-390692'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>Consider the following code snippet: <br \/>\r<br>1. let name = &quot;John Doe&quot;; <br \/>\r<br>2. let upperName = new String(name.toUpperCase()); <br \/>\r<br>3. let finalName = upperName.toLowerCase().slice(0, 4); <br \/>\r<br>4. console.log(finalName); <br \/>\r<br>What will be the output?<\/div><input type='hidden' name='question_id[]' id='qID_9' value='390692' \/><input type='hidden' id='answerType390692' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390692[]' id='answer-id-1519433' class='answer   answerof-390692 ' value='1519433'   \/><label for='answer-id-1519433' id='answer-label-1519433' class=' answer'><span>JOHn<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390692[]' id='answer-id-1519434' class='answer   answerof-390692 ' value='1519434'   \/><label for='answer-id-1519434' id='answer-label-1519434' class=' answer'><span>Doe<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390692[]' id='answer-id-1519435' class='answer   answerof-390692 ' value='1519435'   \/><label for='answer-id-1519435' id='answer-label-1519435' class=' answer'><span>john<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390692[]' id='answer-id-1519436' class='answer   answerof-390692 ' value='1519436'   \/><label for='answer-id-1519436' id='answer-label-1519436' class=' answer'><span>JOHN<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-390693'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>You need to manage a Map of user IDs and their login statuses in a web application. <br \/>\r<br>Given the following code snippet, what will be the state of the logins map after all operations? <br \/>\r<br>1. let logins = new Map([ <br \/>\r<br>2. [201, 'online'], <br \/>\r<br>3. [202, 'offline'], <br \/>\r<br>4. [203, 'online'] <br \/>\r<br>5. ]); <br \/>\r<br>6. <br \/>\r<br>7. logins.set(204, 'offline'); <br \/>\r<br>8. logins.set(202, 'online'); <br \/>\r<br>9. logins.delete(203); <br \/>\r<br>10. logins.set(201, 'offline'); <br \/>\r<br>11. <br \/>\r<br>12. let onlineUsers = []; <br \/>\r<br>13. for (let [id, status] of logins) { <br \/>\r<br>14. if (status === 'online') { <br \/>\r<br>15. onlineUsers.push(id); <br \/>\r<br>16. } <br \/>\r<br>17. } <br \/>\r<br>Which array will onlineUsers contain?<\/div><input type='hidden' name='question_id[]' id='qID_10' value='390693' \/><input type='hidden' id='answerType390693' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390693[]' id='answer-id-1519437' class='answer   answerof-390693 ' value='1519437'   \/><label for='answer-id-1519437' id='answer-label-1519437' class=' answer'><span>[202]<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390693[]' id='answer-id-1519438' class='answer   answerof-390693 ' value='1519438'   \/><label for='answer-id-1519438' id='answer-label-1519438' class=' answer'><span>[201, 202, 204]<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390693[]' id='answer-id-1519439' class='answer   answerof-390693 ' value='1519439'   \/><label for='answer-id-1519439' id='answer-label-1519439' class=' answer'><span>[201, 203, 204]<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390693[]' id='answer-id-1519440' class='answer   answerof-390693 ' value='1519440'   \/><label for='answer-id-1519440' id='answer-label-1519440' class=' answer'><span>[201, 202]<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-11' style=';'><div id='questionWrap-11'  class='   watupro-question-id-390694'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>11. <\/span>Why is using JSON.parse(JSON.stringify(object)) not always suitable for deep cloning objects?<\/div><input type='hidden' name='question_id[]' id='qID_11' value='390694' \/><input type='hidden' id='answerType390694' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390694[]' id='answer-id-1519441' class='answer   answerof-390694 ' value='1519441'   \/><label for='answer-id-1519441' id='answer-label-1519441' class=' answer'><span>It creates a shallow copy, not a deep clone.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390694[]' id='answer-id-1519442' class='answer   answerof-390694 ' value='1519442'   \/><label for='answer-id-1519442' id='answer-label-1519442' class=' answer'><span>It skips non-enumerable properties.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390694[]' id='answer-id-1519443' class='answer   answerof-390694 ' value='1519443'   \/><label for='answer-id-1519443' id='answer-label-1519443' class=' answer'><span>It cannot handle circular references in the object.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390694[]' id='answer-id-1519444' class='answer   answerof-390694 ' value='1519444'   \/><label for='answer-id-1519444' id='answer-label-1519444' class=' answer'><span>It does not work with arrays.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-12' style=';'><div id='questionWrap-12'  class='   watupro-question-id-390695'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>12. <\/span>Consider the following JavaScript code: <br \/>\r<br>1. class Library { <br \/>\r<br>2. static totalBooks = 0; <br \/>\r<br>3. <br \/>\r<br>4. constructor(name, books) { <br \/>\r<br>5. this.name = name; <br \/>\r<br>6. this.books = books; <br \/>\r<br>7. Library.addBooks(books); <br \/>\r<br>8. } <br \/>\r<br>9. <br \/>\r<br>10. static addBooks(number) { <br \/>\r<br>11. Library.totalBooks += number; <br \/>\r<br>12. } <br \/>\r<br>13. } <br \/>\r<br>14. <br \/>\r<br>15. let library1 = new Library('Central Library', 500); <br \/>\r<br>16. let library2 = new Library('Westside Library', 300); <br \/>\r<br>17. let library3 = new Library('Eastside Library', 200); <br \/>\r<br>18. <br \/>\r<br>19. console.log(Library.totalBooks); <br \/>\r<br>What will be the output of console.log(Library.totalBooks) ?<\/div><input type='hidden' name='question_id[]' id='qID_12' value='390695' \/><input type='hidden' id='answerType390695' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390695[]' id='answer-id-1519445' class='answer   answerof-390695 ' value='1519445'   \/><label for='answer-id-1519445' id='answer-label-1519445' class=' answer'><span>undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390695[]' id='answer-id-1519446' class='answer   answerof-390695 ' value='1519446'   \/><label for='answer-id-1519446' id='answer-label-1519446' class=' answer'><span>1000<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390695[]' id='answer-id-1519447' class='answer   answerof-390695 ' value='1519447'   \/><label for='answer-id-1519447' id='answer-label-1519447' class=' answer'><span>500<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390695[]' id='answer-id-1519448' class='answer   answerof-390695 ' value='1519448'   \/><label for='answer-id-1519448' id='answer-label-1519448' class=' answer'><span>0<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-13' style=';'><div id='questionWrap-13'  class='   watupro-question-id-390696'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>13. <\/span>Given the following code snippet, what will be the output when myCar.getDetails() is called? <br \/>\r<br>1. const Car = class { <br \/>\r<br>2. constructor(make, model) { <br \/>\r<br>3. this.make = make; <br \/>\r<br>4. this.model = model; <br \/>\r<br>5. } <br \/>\r<br>6. <br \/>\r<br>7. getDetails() { <br \/>\r<br>8. console.log(`Car make: ${this.make}, Model: ${this.model}`); <br \/>\r<br>9. } <br \/>\r<br>10. }; <br \/>\r<br>11. <br \/>\r<br>12. const myCar = new Car('Toyota', 'Camry'); <br \/>\r<br>13. myCar.getDetails();<\/div><input type='hidden' name='question_id[]' id='qID_13' value='390696' \/><input type='hidden' id='answerType390696' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390696[]' id='answer-id-1519449' class='answer   answerof-390696 ' value='1519449'   \/><label for='answer-id-1519449' id='answer-label-1519449' class=' answer'><span>Car make: undefined, Model: undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390696[]' id='answer-id-1519450' class='answer   answerof-390696 ' value='1519450'   \/><label for='answer-id-1519450' id='answer-label-1519450' class=' answer'><span>Car make: Toyota, Model: undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390696[]' id='answer-id-1519451' class='answer   answerof-390696 ' value='1519451'   \/><label for='answer-id-1519451' id='answer-label-1519451' class=' answer'><span>Car make: Toyota, Model: Camry<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390696[]' id='answer-id-1519452' class='answer   answerof-390696 ' value='1519452'   \/><label for='answer-id-1519452' id='answer-label-1519452' class=' answer'><span>Car make: , Model:<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-14' style=';'><div id='questionWrap-14'  class='   watupro-question-id-390697'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>14. <\/span>You are tasked with developing a custom iterator to traverse a deeply nested object structure, ensuring that each value is processed without using recursion to avoid stack overflow errors. <br \/>\r<br>Which of the following implementations would be the most appropriate?<\/div><input type='hidden' name='question_id[]' id='qID_14' value='390697' \/><input type='hidden' id='answerType390697' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390697[]' id='answer-id-1519453' class='answer   answerof-390697 ' value='1519453'   \/><label for='answer-id-1519453' id='answer-label-1519453' class=' answer'><span>Implement a generator function that yields each value in the nested object.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390697[]' id='answer-id-1519454' class='answer   answerof-390697 ' value='1519454'   \/><label for='answer-id-1519454' id='answer-label-1519454' class=' answer'><span>Use Array.prototype.map to process each value in the nested object.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390697[]' id='answer-id-1519455' class='answer   answerof-390697 ' value='1519455'   \/><label for='answer-id-1519455' id='answer-label-1519455' class=' answer'><span>Use a regular for loop to iterate over the object properties.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390697[]' id='answer-id-1519456' class='answer   answerof-390697 ' value='1519456'   \/><label for='answer-id-1519456' id='answer-label-1519456' class=' answer'><span>Create a custom iterator object with a next method to traverse the nested object.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-15' style=';'><div id='questionWrap-15'  class='   watupro-question-id-390698'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>15. <\/span>You have an object representing a book and you want to create a copy of this object while updating the price property. <br \/>\r<br>Which code snippet correctly creates the updated copy using the spread operator? <br \/>\r<br>1. const book = { <br \/>\r<br>2. title: 'JavaScript Essentials', <br \/>\r<br>3. author: 'John Doe', <br \/>\r<br>4. price: 20 <br \/>\r<br>5. }; <br \/>\r<br>6. <br \/>\r<br>7. const updatedBook = __________; <br \/>\r<br>8. <br \/>\r<br>9. console.log(updatedBook);<\/div><input type='hidden' name='question_id[]' id='qID_15' value='390698' \/><input type='hidden' id='answerType390698' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390698[]' id='answer-id-1519457' class='answer   answerof-390698 ' value='1519457'   \/><label for='answer-id-1519457' id='answer-label-1519457' class=' answer'><span>const updatedBook = { ...book, price: 25 };<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390698[]' id='answer-id-1519458' class='answer   answerof-390698 ' value='1519458'   \/><label for='answer-id-1519458' id='answer-label-1519458' class=' answer'><span>const updatedBook = book.map(item =&gt; item.price = 25);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390698[]' id='answer-id-1519459' class='answer   answerof-390698 ' value='1519459'   \/><label for='answer-id-1519459' id='answer-label-1519459' class=' answer'><span>const updatedBook = Object.assign(book, { price: 25 });<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390698[]' id='answer-id-1519460' class='answer   answerof-390698 ' value='1519460'   \/><label for='answer-id-1519460' id='answer-label-1519460' class=' answer'><span>const updatedBook = book; updatedBook.price = 25;<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-16' style=';'><div id='questionWrap-16'  class='   watupro-question-id-390699'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>16. <\/span>Which of the following statements correctly demonstrates testing for the presence of a field in a JavaScript object using the in keyword?<\/div><input type='hidden' name='question_id[]' id='qID_16' value='390699' \/><input type='hidden' id='answerType390699' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390699[]' id='answer-id-1519461' class='answer   answerof-390699 ' value='1519461'   \/><label for='answer-id-1519461' id='answer-label-1519461' class=' answer'><span>obj.field !== undefined always reliably tests for the existence of a field.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390699[]' id='answer-id-1519462' class='answer   answerof-390699 ' value='1519462'   \/><label for='answer-id-1519462' id='answer-label-1519462' class=' answer'><span>Object.keys(obj).includes('field') is the best method to check for the presence of a field.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390699[]' id='answer-id-1519463' class='answer   answerof-390699 ' value='1519463'   \/><label for='answer-id-1519463' id='answer-label-1519463' class=' answer'><span>if (obj.field) {} is the best way to test if a field exists in an object.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390699[]' id='answer-id-1519464' class='answer   answerof-390699 ' value='1519464'   \/><label for='answer-id-1519464' id='answer-label-1519464' class=' answer'><span>if ('field' in obj) {} is a correct way to test if a field exists in an object.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-17' style=';'><div id='questionWrap-17'  class='   watupro-question-id-390700'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>17. <\/span>What is the primary purpose of the__proto__property in JavaScript objects?<\/div><input type='hidden' name='question_id[]' id='qID_17' value='390700' \/><input type='hidden' id='answerType390700' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390700[]' id='answer-id-1519465' class='answer   answerof-390700 ' value='1519465'   \/><label for='answer-id-1519465' id='answer-label-1519465' class=' answer'><span>To set or get the prototype of an object.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390700[]' id='answer-id-1519466' class='answer   answerof-390700 ' value='1519466'   \/><label for='answer-id-1519466' id='answer-label-1519466' class=' answer'><span>To define the class of the object.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390700[]' id='answer-id-1519467' class='answer   answerof-390700 ' value='1519467'   \/><label for='answer-id-1519467' id='answer-label-1519467' class=' answer'><span>To enforce strict data types on object properties.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390700[]' id='answer-id-1519468' class='answer   answerof-390700 ' value='1519468'   \/><label for='answer-id-1519468' id='answer-label-1519468' class=' answer'><span>To create private variables within an object.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-18' style=';'><div id='questionWrap-18'  class='   watupro-question-id-390701'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>18. <\/span>Which of the following statements correctly compares dot notation and bracket notation in JavaScript, with an emphasis on dot notation as the primary way to refer to object fields?<\/div><input type='hidden' name='question_id[]' id='qID_18' value='390701' \/><input type='hidden' id='answerType390701' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390701[]' id='answer-id-1519469' class='answer   answerof-390701 ' value='1519469'   \/><label for='answer-id-1519469' id='answer-label-1519469' class=' answer'><span>Bracket notation is always preferred over dot notation due to its flexibility.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390701[]' id='answer-id-1519470' class='answer   answerof-390701 ' value='1519470'   \/><label for='answer-id-1519470' id='answer-label-1519470' class=' answer'><span>Dot notation is the only way to access object methods.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390701[]' id='answer-id-1519471' class='answer   answerof-390701 ' value='1519471'   \/><label for='answer-id-1519471' id='answer-label-1519471' class=' answer'><span>Dot notation is the primary way to access object fields, but it cannot be used if the property name contains spaces or special characters.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390701[]' id='answer-id-1519472' class='answer   answerof-390701 ' value='1519472'   \/><label for='answer-id-1519472' id='answer-label-1519472' class=' answer'><span>Dot notation allows the use of variables as property names, whereas bracket notation does not.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-19' style=';'><div id='questionWrap-19'  class='   watupro-question-id-390702'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>19. <\/span>Which of the following is NOT a valid way to create a classless object in JavaScript?<\/div><input type='hidden' name='question_id[]' id='qID_19' value='390702' \/><input type='hidden' id='answerType390702' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390702[]' id='answer-id-1519473' class='answer   answerof-390702 ' value='1519473'   \/><label for='answer-id-1519473' id='answer-label-1519473' class=' answer'><span>let obj = new class {};<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390702[]' id='answer-id-1519474' class='answer   answerof-390702 ' value='1519474'   \/><label for='answer-id-1519474' id='answer-label-1519474' class=' answer'><span>let obj = Object.create(null);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390702[]' id='answer-id-1519475' class='answer   answerof-390702 ' value='1519475'   \/><label for='answer-id-1519475' id='answer-label-1519475' class=' answer'><span>let obj = { };<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390702[]' id='answer-id-1519476' class='answer   answerof-390702 ' value='1519476'   \/><label for='answer-id-1519476' id='answer-label-1519476' class=' answer'><span>let obj = Object.assign({}, {a: 1});<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-20' style=';'><div id='questionWrap-20'  class='   watupro-question-id-390703'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>20. <\/span>You have an array of numbers that you want to pass as individual arguments to a function that calculates their product. <br \/>\r<br>Which implementation correctly achieves this using the spread operator?<\/div><input type='hidden' name='question_id[]' id='qID_20' value='390703' \/><input type='hidden' id='answerType390703' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390703[]' id='answer-id-1519477' class='answer   answerof-390703 ' value='1519477'   \/><label for='answer-id-1519477' id='answer-label-1519477' class=' answer'><span>function multiply(a, b, c) { return a * b * c;}const numbers = [2, 3, 4];const result = multiply(...numbers);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390703[]' id='answer-id-1519478' class='answer   answerof-390703 ' value='1519478'   \/><label for='answer-id-1519478' id='answer-label-1519478' class=' answer'><span>function multiply([a, b, c]) { return a * b * c;}const numbers = [2, 3, 4];const result = multiply(...numbers);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390703[]' id='answer-id-1519479' class='answer   answerof-390703 ' value='1519479'   \/><label for='answer-id-1519479' id='answer-label-1519479' class=' answer'><span>function multiply(a, b, c) { return a * b * c;}const numbers = [2, 3, 4];const result = multiply(numbers);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390703[]' id='answer-id-1519480' class='answer   answerof-390703 ' value='1519480'   \/><label for='answer-id-1519480' id='answer-label-1519480' class=' answer'><span>function multiply(...args) { return args.reduce((a, b) =&gt; a * b, 1);}const numbers = [2, 3, 4];const \r\nresult = multiply(...numbers);<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-21' style=';'><div id='questionWrap-21'  class='   watupro-question-id-390704'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>21. <\/span>Given the following code snippet, which of the following options will correctly test if the string &quot;hello123&quot; contains one or more digits? <br \/>\r<br>1. let str = &quot;hello123&quot;; <br \/>\r<br>2. let regex = \/[0-9]+\/;<\/div><input type='hidden' name='question_id[]' id='qID_21' value='390704' \/><input type='hidden' id='answerType390704' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390704[]' id='answer-id-1519481' class='answer   answerof-390704 ' value='1519481'   \/><label for='answer-id-1519481' id='answer-label-1519481' class=' answer'><span>str.search(regex)<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390704[]' id='answer-id-1519482' class='answer   answerof-390704 ' value='1519482'   \/><label for='answer-id-1519482' id='answer-label-1519482' class=' answer'><span>regex.test(str)<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390704[]' id='answer-id-1519483' class='answer   answerof-390704 ' value='1519483'   \/><label for='answer-id-1519483' id='answer-label-1519483' class=' answer'><span>regex.search(str)<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390704[]' id='answer-id-1519484' class='answer   answerof-390704 ' value='1519484'   \/><label for='answer-id-1519484' id='answer-label-1519484' class=' answer'><span>regex.match(str)<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-22' style=';'><div id='questionWrap-22'  class='   watupro-question-id-390705'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>22. <\/span>You need to create a JavaScript function createMultiplier that takes a number factor and returns a new function that multiplies its argument by factor. <br \/>\r<br>Which of the following implementations correctly achieves this?<\/div><input type='hidden' name='question_id[]' id='qID_22' value='390705' \/><input type='hidden' id='answerType390705' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390705[]' id='answer-id-1519485' class='answer   answerof-390705 ' value='1519485'   \/><label for='answer-id-1519485' id='answer-label-1519485' class=' answer'><span>function createMultiplier(factor) { return function(number) { return factor - number; }}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390705[]' id='answer-id-1519486' class='answer   answerof-390705 ' value='1519486'   \/><label for='answer-id-1519486' id='answer-label-1519486' class=' answer'><span>function createMultiplier(factor) { return function(number) { return number * factor; }}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390705[]' id='answer-id-1519487' class='answer   answerof-390705 ' value='1519487'   \/><label for='answer-id-1519487' id='answer-label-1519487' class=' answer'><span>function createMultiplier(factor) { return function() { return factor * factor; }}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390705[]' id='answer-id-1519488' class='answer   answerof-390705 ' value='1519488'   \/><label for='answer-id-1519488' id='answer-label-1519488' class=' answer'><span>function createMultiplier(factor) { return function(number) { return factor + number; }}<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-23' style=';'><div id='questionWrap-23'  class='   watupro-question-id-390706'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>23. <\/span>Given the following code snippet, which two statements about the output are correct? <br \/>\r<br>1. class Animal { <br \/>\r<br>2. constructor(name) { <br \/>\r<br>3. this.name = name; <br \/>\r<br>4. } <br \/>\r<br>5. <br \/>\r<br>6. speak() { <br \/>\r<br>7. console.log(`${this.name} makes a noise.`); <br \/>\r<br>8. } <br \/>\r<br>9. } <br \/>\r<br>10. <br \/>\r<br>11. class Dog extends Animal { <br \/>\r<br>12. speak() { <br \/>\r<br>13. console.log(`${this.name} barks.`); <br \/>\r<br>14. } <br \/>\r<br>15. } <br \/>\r<br>16. <br \/>\r<br>17. const myDog = new Dog('Rex'); <br \/>\r<br>18. myDog.speak();<\/div><input type='hidden' name='question_id[]' id='qID_23' value='390706' \/><input type='hidden' id='answerType390706' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390706[]' id='answer-id-1519489' class='answer   answerof-390706 ' value='1519489'   \/><label for='answer-id-1519489' id='answer-label-1519489' class=' answer'><span>The code will throw an error because Dog does not have a constructor<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390706[]' id='answer-id-1519490' class='answer   answerof-390706 ' value='1519490'   \/><label for='answer-id-1519490' id='answer-label-1519490' class=' answer'><span>The Dog class correctly overrides the speak method of the Animal class<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390706[]' id='answer-id-1519491' class='answer   answerof-390706 ' value='1519491'   \/><label for='answer-id-1519491' id='answer-label-1519491' class=' answer'><span>The output will be &quot;Rex barks.&quot;<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390706[]' id='answer-id-1519492' class='answer   answerof-390706 ' value='1519492'   \/><label for='answer-id-1519492' id='answer-label-1519492' class=' answer'><span>The output will be &quot;Rex makes a noise.&quot;<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-24' style=';'><div id='questionWrap-24'  class='   watupro-question-id-390707'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>24. <\/span>Consider the following JavaScript code snippet. <br \/>\r<br>What will be the output of the displayDetails function when it is called? <br \/>\r<br>1. const user = { <br \/>\r<br>2. firstName: &quot;John&quot;, <br \/>\r<br>3. lastName: &quot;Doe&quot;, <br \/>\r<br>4. getFullName: function() { <br \/>\r<br>5. return this.firstName + &quot; &quot; + this.lastName; <br \/>\r<br>6. } <br \/>\r<br>7. }; <br \/>\r<br>8. <br \/>\r<br>9. const displayDetails = function() { <br \/>\r<br>10. return user.getFullName(); <br \/>\r<br>11. }; <br \/>\r<br>12. <br \/>\r<br>13. console.log(displayDetails());<\/div><input type='hidden' name='question_id[]' id='qID_24' value='390707' \/><input type='hidden' id='answerType390707' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390707[]' id='answer-id-1519493' class='answer   answerof-390707 ' value='1519493'   \/><label for='answer-id-1519493' id='answer-label-1519493' class=' answer'><span>this.firstName this.lastName<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390707[]' id='answer-id-1519494' class='answer   answerof-390707 ' value='1519494'   \/><label for='answer-id-1519494' id='answer-label-1519494' class=' answer'><span>undefined undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390707[]' id='answer-id-1519495' class='answer   answerof-390707 ' value='1519495'   \/><label for='answer-id-1519495' id='answer-label-1519495' class=' answer'><span>John Doe<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390707[]' id='answer-id-1519496' class='answer   answerof-390707 ' value='1519496'   \/><label for='answer-id-1519496' id='answer-label-1519496' class=' answer'><span>null null<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-25' style=';'><div id='questionWrap-25'  class='   watupro-question-id-390708'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>25. <\/span>Given the following object and scenario: <br \/>\r<br>1. var person = { <br \/>\r<br>2. name: &quot;Alice&quot;, <br \/>\r<br>3. age: 30, <br \/>\r<br>4. greet: function() { <br \/>\r<br>5. return &quot;Hello, &quot; + this.name; <br \/>\r<br>6. } <br \/>\r<br>7. }; <br \/>\r<br>Which method correctly calls the greet function and alerts the greeting?<\/div><input type='hidden' name='question_id[]' id='qID_25' value='390708' \/><input type='hidden' id='answerType390708' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390708[]' id='answer-id-1519497' class='answer   answerof-390708 ' value='1519497'   \/><label for='answer-id-1519497' id='answer-label-1519497' class=' answer'><span>alert(person.greet());<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390708[]' id='answer-id-1519498' class='answer   answerof-390708 ' value='1519498'   \/><label for='answer-id-1519498' id='answer-label-1519498' class=' answer'><span>alert(person.greet(&quot;Alice&quot;));<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390708[]' id='answer-id-1519499' class='answer   answerof-390708 ' value='1519499'   \/><label for='answer-id-1519499' id='answer-label-1519499' class=' answer'><span>alert(person[&quot;greet&quot;]());<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390708[]' id='answer-id-1519500' class='answer   answerof-390708 ' value='1519500'   \/><label for='answer-id-1519500' id='answer-label-1519500' class=' answer'><span>alert(person.greet);<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-26' style=';'><div id='questionWrap-26'  class='   watupro-question-id-390709'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>26. <\/span>You have an object vehicle and want to create another object car that inherits properties from vehicle using the __proto__ property. <br \/>\r<br>Which of the following code snippets correctly sets up this inheritance? <br \/>\r<br>1. let vehicle = { <br \/>\r<br>2. type: 'Vehicle', <br \/>\r<br>3. move: function() { <br \/>\r<br>4. return 'Moving'; <br \/>\r<br>5. } <br \/>\r<br>6. };<\/div><input type='hidden' name='question_id[]' id='qID_26' value='390709' \/><input type='hidden' id='answerType390709' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390709[]' id='answer-id-1519501' class='answer   answerof-390709 ' value='1519501'   \/><label for='answer-id-1519501' id='answer-label-1519501' class=' answer'><span>let car = Object.assign(vehicle, { type: 'Car' });<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390709[]' id='answer-id-1519502' class='answer   answerof-390709 ' value='1519502'   \/><label for='answer-id-1519502' id='answer-label-1519502' class=' answer'><span>let car = new vehicle({ type: 'Car'});car.__proto__ = vehicle;<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390709[]' id='answer-id-1519503' class='answer   answerof-390709 ' value='1519503'   \/><label for='answer-id-1519503' id='answer-label-1519503' class=' answer'><span>let car = { __proto__: vehicle };<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390709[]' id='answer-id-1519504' class='answer   answerof-390709 ' value='1519504'   \/><label for='answer-id-1519504' id='answer-label-1519504' class=' answer'><span>let car = Object.create(vehicle);car.__proto__ = vehicle;<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-27' style=';'><div id='questionWrap-27'  class='   watupro-question-id-390710'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>27. <\/span>Consider the following JavaScript object: <br \/>\r<br>1. let person = { <br \/>\r<br>2. name: &quot;Alice&quot;, <br \/>\r<br>3. age: 25, <br \/>\r<br>4. occupation: &quot;developer&quot; <br \/>\r<br>5. }; <br \/>\r<br>Which two of the following statements correctly check for property existence or enumerate the properties of the person object?<\/div><input type='hidden' name='question_id[]' id='qID_27' value='390710' \/><input type='hidden' id='answerType390710' value='checkbox'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390710[]' id='answer-id-1519505' class='answer   answerof-390710 ' value='1519505'   \/><label for='answer-id-1519505' id='answer-label-1519505' class=' answer'><span>person.hasOwnProperty(&quot;occupation&quot;)<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390710[]' id='answer-id-1519506' class='answer   answerof-390710 ' value='1519506'   \/><label for='answer-id-1519506' id='answer-label-1519506' class=' answer'><span>person.contains(&quot;age&quot;)<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390710[]' id='answer-id-1519507' class='answer   answerof-390710 ' value='1519507'   \/><label for='answer-id-1519507' id='answer-label-1519507' class=' answer'><span>&quot;age&quot; in person<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='checkbox' name='answer-390710[]' id='answer-id-1519508' class='answer   answerof-390710 ' value='1519508'   \/><label for='answer-id-1519508' id='answer-label-1519508' class=' answer'><span>person.includes(&quot;developer&quot;)<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-28' style=';'><div id='questionWrap-28'  class='   watupro-question-id-390711'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>28. <\/span>You are developing a feature that requires you to chain multiple asynchronous operations. <br \/>\r<br>Given a function getUserProfile that fetches a user's profile and a function getPosts <br \/>\r<br>that fetches posts for a user, you need to: <br \/>\r<br>1. Fetch the user profile. <br \/>\r<br>2. Fetch the posts of that user based on the profile data. <br \/>\r<br>3. Log both the profile and posts data if both operations succeed. <br \/>\r<br>4. Log an error message if any of the operations fail. <br \/>\r<br>5. Log a message &quot;Process finished&quot; after both operations are complete, regardless of success or failure. <br \/>\r<br>Which code snippet correctly achieves this?<\/div><input type='hidden' name='question_id[]' id='qID_28' value='390711' \/><input type='hidden' id='answerType390711' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390711[]' id='answer-id-1519509' class='answer   answerof-390711 ' value='1519509'   \/><label for='answer-id-1519509' id='answer-label-1519509' class=' answer'><span>getUserProfile().then((profile) =&gt; { return getPosts(profile.id).then((posts) =&gt; { console.log(profile, posts); });}).catch((error) =&gt; { console.error('Error:', error);});<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390711[]' id='answer-id-1519510' class='answer   answerof-390711 ' value='1519510'   \/><label for='answer-id-1519510' id='answer-label-1519510' class=' answer'><span>getUserProfile().then((profile) =&gt; { return getPosts(profile.id);}).then((posts) =&gt; { \r\nconsole.log(posts);}).catch((error) =&gt; { console.error('Error:', error);}).finally(() =&gt; { console.log('Process finished');});<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390711[]' id='answer-id-1519511' class='answer   answerof-390711 ' value='1519511'   \/><label for='answer-id-1519511' id='answer-label-1519511' class=' answer'><span>getUserProfile().then((profile) =&gt; { return getPosts(profile.id).then((posts) =&gt; { console.log(profile, posts); });}).catch((error) =&gt; { console.error('Error:', error);}).finally(() =&gt; { console.log('Process finished');});<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390711[]' id='answer-id-1519512' class='answer   answerof-390711 ' value='1519512'   \/><label for='answer-id-1519512' id='answer-label-1519512' class=' answer'><span>getUserProfile().then((profile) =&gt; { return getPosts(profile.id).then((posts) =&gt; { console.log(profile, posts); });}).finally(() =&gt; { console.log('Process finished');}).catch((error) =&gt; { console.error('Error:', error);});<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-29' style=';'><div id='questionWrap-29'  class='   watupro-question-id-390712'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>29. <\/span>JavaScript supports classless objects where objects are created directly from prototypes. <br \/>\r<br>Which of the following statements correctly describes the behavior of classless objects compared to class-based objects?<\/div><input type='hidden' name='question_id[]' id='qID_29' value='390712' \/><input type='hidden' id='answerType390712' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390712[]' id='answer-id-1519513' class='answer   answerof-390712 ' value='1519513'   \/><label for='answer-id-1519513' id='answer-label-1519513' class=' answer'><span>In JavaScript, classless objects are created using the &quot;class&quot; keyword and the &quot;extends&quot; keyword for inheritance.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390712[]' id='answer-id-1519514' class='answer   answerof-390712 ' value='1519514'   \/><label for='answer-id-1519514' id='answer-label-1519514' class=' answer'><span>Classless objects in JavaScript do not support inheritance.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390712[]' id='answer-id-1519515' class='answer   answerof-390712 ' value='1519515'   \/><label for='answer-id-1519515' id='answer-label-1519515' class=' answer'><span>Classless objects in JavaScript use the &quot;new&quot; keyword to create instances from a prototype.<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390712[]' id='answer-id-1519516' class='answer   answerof-390712 ' value='1519516'   \/><label for='answer-id-1519516' id='answer-label-1519516' class=' answer'><span>Classless objects in JavaScript can be created using object literals and prototype-based \r\ninheritance.<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-30' style=';'><div id='questionWrap-30'  class='   watupro-question-id-390713'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>30. <\/span>You are tasked with managing a set of unique product IDs in an e-commerce application. You need to add new product IDs, check for their existence, and remove some of them based on certain conditions. <br \/>\r<br>Given the following code snippet, what will be the output? <br \/>\r<br>1. let productIDs = new Set(); <br \/>\r<br>2. productIDs.add(101).add(102).add(103).add(101); <br \/>\r<br>3. productIDs.delete(102); <br \/>\r<br>4. productIDs.add(104); <br \/>\r<br>5. <br \/>\r<br>6. if (productIDs.has(103)) { <br \/>\r<br>7. productIDs.delete(103); <br \/>\r<br>8. } <br \/>\r<br>9. console.log(productIDs.size); <br \/>\r<br>What will the console.log statement print?<\/div><input type='hidden' name='question_id[]' id='qID_30' value='390713' \/><input type='hidden' id='answerType390713' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390713[]' id='answer-id-1519517' class='answer   answerof-390713 ' value='1519517'   \/><label for='answer-id-1519517' id='answer-label-1519517' class=' answer'><span>4<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390713[]' id='answer-id-1519518' class='answer   answerof-390713 ' value='1519518'   \/><label for='answer-id-1519518' id='answer-label-1519518' class=' answer'><span>2<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390713[]' id='answer-id-1519519' class='answer   answerof-390713 ' value='1519519'   \/><label for='answer-id-1519519' id='answer-label-1519519' class=' answer'><span>1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390713[]' id='answer-id-1519520' class='answer   answerof-390713 ' value='1519520'   \/><label for='answer-id-1519520' id='answer-label-1519520' class=' answer'><span>3<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-31' style=';'><div id='questionWrap-31'  class='   watupro-question-id-390714'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>31. <\/span>You need to find the minimum and maximum values in an array of numbers and then calculate the difference between the ceiling of the minimum value and the floor of the maximum value. <br \/>\r<br>Which of the following implementations is correct? <br \/>\r<br>1. function minMaxDifference(arr) { <br \/>\r<br>2. \/\/ code here <br \/>\r<br>3. }<\/div><input type='hidden' name='question_id[]' id='qID_31' value='390714' \/><input type='hidden' id='answerType390714' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390714[]' id='answer-id-1519521' class='answer   answerof-390714 ' value='1519521'   \/><label for='answer-id-1519521' id='answer-label-1519521' class=' answer'><span>return Math.ceil(Math.max(...arr)) - Math.floor(Math.min(...arr));<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390714[]' id='answer-id-1519522' class='answer   answerof-390714 ' value='1519522'   \/><label for='answer-id-1519522' id='answer-label-1519522' class=' answer'><span>return Math.ceil(Math.min(...arr)) - Math.floor(Math.max(...arr));<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390714[]' id='answer-id-1519523' class='answer   answerof-390714 ' value='1519523'   \/><label for='answer-id-1519523' id='answer-label-1519523' class=' answer'><span>return Math.ceil(Math.min(...arr)) + Math.floor(Math.max(...arr));<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390714[]' id='answer-id-1519524' class='answer   answerof-390714 ' value='1519524'   \/><label for='answer-id-1519524' id='answer-label-1519524' class=' answer'><span>return Math.ceil(Math.min(...arr)) - Math.floor(Math.min(...arr));<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-32' style=';'><div id='questionWrap-32'  class='   watupro-question-id-390715'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>32. <\/span>Given the following class definition, what will be the output of the code? <br \/>\r<br>1. class Animal { <br \/>\r<br>2. type = 'mammal'; <br \/>\r<br>3. <br \/>\r<br>4. constructor(name) { <br \/>\r<br>5. this.name = name; <br \/>\r<br>6. } <br \/>\r<br>7. <br \/>\r<br>8. describe() { <br \/>\r<br>9. return `${this.name} is a ${this.type}`; <br \/>\r<br>10. } <br \/>\r<br>11. <br \/>\r<br>12. setType(newType) { <br \/>\r<br>13. this.type = newType; <br \/>\r<br>14. } <br \/>\r<br>15. } <br \/>\r<br>16. <br \/>\r<br>17. const animal = new Animal(&quot;Elephant&quot;); <br \/>\r<br>18. animal.setType(&quot;herbivore&quot;); <br \/>\r<br>19. console.log(animal.describe());<\/div><input type='hidden' name='question_id[]' id='qID_32' value='390715' \/><input type='hidden' id='answerType390715' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390715[]' id='answer-id-1519525' class='answer   answerof-390715 ' value='1519525'   \/><label for='answer-id-1519525' id='answer-label-1519525' class=' answer'><span>Elephant is a mammal<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390715[]' id='answer-id-1519526' class='answer   answerof-390715 ' value='1519526'   \/><label for='answer-id-1519526' id='answer-label-1519526' class=' answer'><span>Elephant is a herbivore<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390715[]' id='answer-id-1519527' class='answer   answerof-390715 ' value='1519527'   \/><label for='answer-id-1519527' id='answer-label-1519527' class=' answer'><span>Error: type is not defined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390715[]' id='answer-id-1519528' class='answer   answerof-390715 ' value='1519528'   \/><label for='answer-id-1519528' id='answer-label-1519528' class=' answer'><span>undefined is a herbivore<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-33' style=';'><div id='questionWrap-33'  class='   watupro-question-id-390716'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>33. <\/span>Consider the following implementation of an iterator: <br \/>\r<br>1. const myIterable = { <br \/>\r<br>2. [Symbol.iterator]: function() { <br \/>\r<br>3. let step = 0; <br \/>\r<br>4. return { <br \/>\r<br>13. }; <br \/>\r<br>14. } <br \/>\r<br>15. }; <br \/>\r<br>16. <br \/>\r<br>17. const iterator = myIterable[Symbol.iterator](); <br \/>\r<br>18. console.log(iterator.next().value); \/\/ ? <br \/>\r<br>19. console.log(iterator.next().value); \/\/ ? <br \/>\r<br>20. console.log(iterator.next().value); \/\/ ? <br \/>\r<br>21. console.log(iterator.next().value); \/\/ ? <br \/>\r<br>What will be the output of the above code?<\/div><input type='hidden' name='question_id[]' id='qID_33' value='390716' \/><input type='hidden' id='answerType390716' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390716[]' id='answer-id-1519529' class='answer   answerof-390716 ' value='1519529'   \/><label for='answer-id-1519529' id='answer-label-1519529' class=' answer'><span>1234<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390716[]' id='answer-id-1519530' class='answer   answerof-390716 ' value='1519530'   \/><label for='answer-id-1519530' id='answer-label-1519530' class=' answer'><span>1357<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390716[]' id='answer-id-1519531' class='answer   answerof-390716 ' value='1519531'   \/><label for='answer-id-1519531' id='answer-label-1519531' class=' answer'><span>246undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390716[]' id='answer-id-1519532' class='answer   answerof-390716 ' value='1519532'   \/><label for='answer-id-1519532' id='answer-label-1519532' class=' answer'><span>2468<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-34' style=';'><div id='questionWrap-34'  class='   watupro-question-id-390717'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>34. <\/span>Which of the following methods correctly rounds the number 4.56789 to two decimal places in JavaScript?<\/div><input type='hidden' name='question_id[]' id='qID_34' value='390717' \/><input type='hidden' id='answerType390717' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390717[]' id='answer-id-1519533' class='answer   answerof-390717 ' value='1519533'   \/><label for='answer-id-1519533' id='answer-label-1519533' class=' answer'><span>Math.round(4.56789)<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390717[]' id='answer-id-1519534' class='answer   answerof-390717 ' value='1519534'   \/><label for='answer-id-1519534' id='answer-label-1519534' class=' answer'><span>4.56789.toFixed(2)<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390717[]' id='answer-id-1519535' class='answer   answerof-390717 ' value='1519535'   \/><label for='answer-id-1519535' id='answer-label-1519535' class=' answer'><span>parseFloat(4.56789).toPrecision(2)<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390717[]' id='answer-id-1519536' class='answer   answerof-390717 ' value='1519536'   \/><label for='answer-id-1519536' id='answer-label-1519536' class=' answer'><span>Number(4.56789).toFixed(2)<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-35' style=';'><div id='questionWrap-35'  class='   watupro-question-id-390718'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>35. <\/span>Consider the following JavaScript code: <br \/>\r<br>1. class Employee { <br \/>\r<br>2. constructor(name) { <br \/>\r<br>3. this.name = name; <br \/>\r<br>4. } <br \/>\r<br>5. getDetails() { <br \/>\r<br>6. return `Employee Name: ${this.name}`; <br \/>\r<br>7. } <br \/>\r<br>8. } <br \/>\r<br>9. <br \/>\r<br>10. class Manager extends Employee { <br \/>\r<br>11. constructor(name, department) { <br \/>\r<br>12. super(name); <br \/>\r<br>13. this.department = department; <br \/>\r<br>14. } <br \/>\r<br>15. getDetails() { <br \/>\r<br>16. return `Manager Name: ${this.name}, Department: ${this.department}`; <br \/>\r<br>17. } <br \/>\r<br>18. } <br \/>\r<br>19. <br \/>\r<br>20. let manager = new Manager('Alice', 'HR'); <br \/>\r<br>21. console.log(manager.getDetails()); <br \/>\r<br>What will be the output of console.log(manager.getDetails())?<\/div><input type='hidden' name='question_id[]' id='qID_35' value='390718' \/><input type='hidden' id='answerType390718' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390718[]' id='answer-id-1519537' class='answer   answerof-390718 ' value='1519537'   \/><label for='answer-id-1519537' id='answer-label-1519537' class=' answer'><span>Manager Name: Alice<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390718[]' id='answer-id-1519538' class='answer   answerof-390718 ' value='1519538'   \/><label for='answer-id-1519538' id='answer-label-1519538' class=' answer'><span>Employee Name: Alice<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390718[]' id='answer-id-1519539' class='answer   answerof-390718 ' value='1519539'   \/><label for='answer-id-1519539' id='answer-label-1519539' class=' answer'><span>Employee Name: Alice, Department: HR<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390718[]' id='answer-id-1519540' class='answer   answerof-390718 ' value='1519540'   \/><label for='answer-id-1519540' id='answer-label-1519540' class=' answer'><span>Manager Name: Alice, Department: HR<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-36' style=';'><div id='questionWrap-36'  class='   watupro-question-id-390719'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>36. <\/span>Which of the following best describes how to create a classless object that includes methods in JavaScript?<\/div><input type='hidden' name='question_id[]' id='qID_36' value='390719' \/><input type='hidden' id='answerType390719' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390719[]' id='answer-id-1519541' class='answer   answerof-390719 ' value='1519541'   \/><label for='answer-id-1519541' id='answer-label-1519541' class=' answer'><span>const createObject = { name: 'object', getName: function() { return this.name; }};<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390719[]' id='answer-id-1519542' class='answer   answerof-390719 ' value='1519542'   \/><label for='answer-id-1519542' id='answer-label-1519542' class=' answer'><span>const createObject = new Object({ name: 'object', getName: function() { return this.name; }});<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390719[]' id='answer-id-1519543' class='answer   answerof-390719 ' value='1519543'   \/><label for='answer-id-1519543' id='answer-label-1519543' class=' answer'><span>const createObject = {};createObject.name = 'object';createObject.getName = function() { return this.name;};<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390719[]' id='answer-id-1519544' class='answer   answerof-390719 ' value='1519544'   \/><label for='answer-id-1519544' id='answer-label-1519544' class=' answer'><span>function createObject() { this.name = 'object'; this.getName = function() { return this.name; };}<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-37' style=';'><div id='questionWrap-37'  class='   watupro-question-id-390720'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>37. <\/span>Which of the following statements correctly demonstrates how to add a key-value pair to a Map object, and how to retrieve a value using the key?<\/div><input type='hidden' name='question_id[]' id='qID_37' value='390720' \/><input type='hidden' id='answerType390720' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390720[]' id='answer-id-1519545' class='answer   answerof-390720 ' value='1519545'   \/><label for='answer-id-1519545' id='answer-label-1519545' class=' answer'><span>let myMap = new Map();myMap.add('key1', 'value1');let value = myMap.get('key1');<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390720[]' id='answer-id-1519546' class='answer   answerof-390720 ' value='1519546'   \/><label for='answer-id-1519546' id='answer-label-1519546' class=' answer'><span>let myMap = new Map();myMap['key1'] = 'value1';let value = myMap.get('key1');<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390720[]' id='answer-id-1519547' class='answer   answerof-390720 ' value='1519547'   \/><label for='answer-id-1519547' id='answer-label-1519547' class=' answer'><span>let myMap = new Map();myMap.set('key1', 'value1');let value = myMap.key1;<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390720[]' id='answer-id-1519548' class='answer   answerof-390720 ' value='1519548'   \/><label for='answer-id-1519548' id='answer-label-1519548' class=' answer'><span>let myMap = new Map();myMap.set('key1', 'value1');let value = myMap.get('key1');<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-38' style=';'><div id='questionWrap-38'  class='   watupro-question-id-390721'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>38. <\/span>You want to add a method first to the Array prototype that returns the first element of the array. <br \/>\r<br>Which of the following code snippets correctly achieves this?<\/div><input type='hidden' name='question_id[]' id='qID_38' value='390721' \/><input type='hidden' id='answerType390721' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390721[]' id='answer-id-1519549' class='answer   answerof-390721 ' value='1519549'   \/><label for='answer-id-1519549' id='answer-label-1519549' class=' answer'><span>Array.first = function() { return this[0];}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390721[]' id='answer-id-1519550' class='answer   answerof-390721 ' value='1519550'   \/><label for='answer-id-1519550' id='answer-label-1519550' class=' answer'><span>Array.prototype.first = function() { return this[0];}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390721[]' id='answer-id-1519551' class='answer   answerof-390721 ' value='1519551'   \/><label for='answer-id-1519551' id='answer-label-1519551' class=' answer'><span>Array.prototype.first = () =&gt; { return this[0];}<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390721[]' id='answer-id-1519552' class='answer   answerof-390721 ' value='1519552'   \/><label for='answer-id-1519552' id='answer-label-1519552' class=' answer'><span>Array.prototype.first = function() { return this.first();}<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-39' style=';'><div id='questionWrap-39'  class='   watupro-question-id-390722'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>39. <\/span>You are developing a dictionary-type data structure in JavaScript to store information about various countries, where the key is the country code and the value is an object containing the country's name and population. <br \/>\r<br>Which code snippet correctly implements adding a new country to the dictionary? <br \/>\r<br>1. const countries = { <br \/>\r<br>2. USA: { <br \/>\r<br>3. name: 'United States', <br \/>\r<br>4. population: 331000000 <br \/>\r<br>5. }, <br \/>\r<br>6. CAN: { <br \/>\r<br>7. name: 'Canada', <br \/>\r<br>8. population: 37700000 <br \/>\r<br>9. }, <br \/>\r<br>10. MEX: { <br \/>\r<br>11. name: 'Mexico', <br \/>\r<br>12. population: 128000000 <br \/>\r<br>13. } <br \/>\r<br>14. }; <br \/>\r<br>15. <br \/>\r<br>16. \/\/ Add a new country - Germany (code: GER, name: 'Germany', population: 83000000) <br \/>\r<br>17. __________ <br \/>\r<br>18. <br \/>\r<br>19. console.log(countries.GER);<\/div><input type='hidden' name='question_id[]' id='qID_39' value='390722' \/><input type='hidden' id='answerType390722' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390722[]' id='answer-id-1519553' class='answer   answerof-390722 ' value='1519553'   \/><label for='answer-id-1519553' id='answer-label-1519553' class=' answer'><span>countries.GER = { name: 'Germany', population: 83000000 };<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390722[]' id='answer-id-1519554' class='answer   answerof-390722 ' value='1519554'   \/><label for='answer-id-1519554' id='answer-label-1519554' class=' answer'><span>countries.set('GER', { name: 'Germany', population: 83000000 });<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390722[]' id='answer-id-1519555' class='answer   answerof-390722 ' value='1519555'   \/><label for='answer-id-1519555' id='answer-label-1519555' class=' answer'><span>countries.add('GER', { name: 'Germany', population: 83000000 });<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390722[]' id='answer-id-1519556' class='answer   answerof-390722 ' value='1519556'   \/><label for='answer-id-1519556' id='answer-label-1519556' class=' answer'><span>countries.push({ GER: { name: 'Germany', population: 83000000 } });<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-40' style=';'><div id='questionWrap-40'  class='   watupro-question-id-390723'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>40. <\/span>You need to create a classless object that inherits from another object. Given the base object animal, which code snippet correctly creates a new object dog that inherits properties from animal? <br \/>\r<br>1. let animal = { <br \/>\r<br>2. species: 'Animal', <br \/>\r<br>3. sound: function() { <br \/>\r<br>4. return 'Some sound'; <br \/>\r<br>5. } <br \/>\r<br>6. };<\/div><input type='hidden' name='question_id[]' id='qID_40' value='390723' \/><input type='hidden' id='answerType390723' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390723[]' id='answer-id-1519557' class='answer   answerof-390723 ' value='1519557'   \/><label for='answer-id-1519557' id='answer-label-1519557' class=' answer'><span>let dog = new animal({ breed: 'Dog'});<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390723[]' id='answer-id-1519558' class='answer   answerof-390723 ' value='1519558'   \/><label for='answer-id-1519558' id='answer-label-1519558' class=' answer'><span>let dog = function(animal) { this.breed = 'Dog';};<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390723[]' id='answer-id-1519559' class='answer   answerof-390723 ' value='1519559'   \/><label for='answer-id-1519559' id='answer-label-1519559' class=' answer'><span>let dog = Object.create(animal, { breed: { value: 'Dog' }});<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390723[]' id='answer-id-1519560' class='answer   answerof-390723 ' value='1519560'   \/><label for='answer-id-1519560' id='answer-label-1519560' class=' answer'><span>let dog = animal.create({ breed: 'Dog'});<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-41' style=';'><div id='questionWrap-41'  class='   watupro-question-id-390724'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>41. <\/span>Which of the following regular expressions will correctly validate if the given string &quot;A1b2C3&quot; follows the pattern of alternating letters and digits?<\/div><input type='hidden' name='question_id[]' id='qID_41' value='390724' \/><input type='hidden' id='answerType390724' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390724[]' id='answer-id-1519561' class='answer   answerof-390724 ' value='1519561'   \/><label for='answer-id-1519561' id='answer-label-1519561' class=' answer'><span>\/([A-Za-z][0-9]){3}\/<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390724[]' id='answer-id-1519562' class='answer   answerof-390724 ' value='1519562'   \/><label for='answer-id-1519562' id='answer-label-1519562' class=' answer'><span>\/^([A-Za-z][0-9])+$\/<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390724[]' id='answer-id-1519563' class='answer   answerof-390724 ' value='1519563'   \/><label for='answer-id-1519563' id='answer-label-1519563' class=' answer'><span>\/^([a-zA-Z0-9])+$\/<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390724[]' id='answer-id-1519564' class='answer   answerof-390724 ' value='1519564'   \/><label for='answer-id-1519564' id='answer-label-1519564' class=' answer'><span>\/([a-zA-Z][0-9])+$\/<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-42' style=';'><div id='questionWrap-42'  class='   watupro-question-id-390725'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>42. <\/span>Given the following class definition, what will be the output of the code? <br \/>\r<br>1. class Book { <br \/>\r<br>2. constructor(title, author) { <br \/>\r<br>3. this._title = title; <br \/>\r<br>4. this._author = author; <br \/>\r<br>5. } <br \/>\r<br>6. <br \/>\r<br>7. get title() { <br \/>\r<br>8. return this._title; <br \/>\r<br>9. } <br \/>\r<br>10. <br \/>\r<br>11. set title(newTitle) { <br \/>\r<br>12. this._title = newTitle; <br \/>\r<br>13. } <br \/>\r<br>14. <br \/>\r<br>15. get author() { <br \/>\r<br>16. return this._author; <br \/>\r<br>17. } <br \/>\r<br>18. <br \/>\r<br>19. set author(newAuthor) { <br \/>\r<br>20. this._author = newAuthor; <br \/>\r<br>21. } <br \/>\r<br>22. <br \/>\r<br>23. getDetails() { <br \/>\r<br>24. return `${this.title} by ${this.author}`; <br \/>\r<br>25. } <br \/>\r<br>26. } <br \/>\r<br>27. <br \/>\r<br>28. const myBook = new Book(&quot;1984&quot;, &quot;George Orwell&quot;); <br \/>\r<br>29. myBook.title = &quot;Animal Farm&quot;; <br \/>\r<br>30. console.log(myBook.getDetails());<\/div><input type='hidden' name='question_id[]' id='qID_42' value='390725' \/><input type='hidden' id='answerType390725' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390725[]' id='answer-id-1519565' class='answer   answerof-390725 ' value='1519565'   \/><label for='answer-id-1519565' id='answer-label-1519565' class=' answer'><span>1984 by George Orwell<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390725[]' id='answer-id-1519566' class='answer   answerof-390725 ' value='1519566'   \/><label for='answer-id-1519566' id='answer-label-1519566' class=' answer'><span>Animal Farm by George Orwell<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390725[]' id='answer-id-1519567' class='answer   answerof-390725 ' value='1519567'   \/><label for='answer-id-1519567' id='answer-label-1519567' class=' answer'><span>1984 by undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390725[]' id='answer-id-1519568' class='answer   answerof-390725 ' value='1519568'   \/><label for='answer-id-1519568' id='answer-label-1519568' class=' answer'><span>Animal Farm by undefined<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-43' style=';'><div id='questionWrap-43'  class='   watupro-question-id-390726'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>43. <\/span>You need to implement a function to update the population of a specific country in your dictionary-type data structure. <br \/>\r<br>Which function implementation correctly updates the population? <br \/>\r<br>1. const countries = { <br \/>\r<br>2. USA: { <br \/>\r<br>3. name: 'United States', <br \/>\r<br>4. population: 331000000 <br \/>\r<br>5. }, <br \/>\r<br>6. CAN: { <br \/>\r<br>7. name: 'Canada', <br \/>\r<br>8. population: 37700000 <br \/>\r<br>9. }, <br \/>\r<br>10. MEX: { <br \/>\r<br>11. name: 'Mexico', <br \/>\r<br>12. population: 128000000 <br \/>\r<br>13. } <br \/>\r<br>14. }; <br \/>\r<br>15. <br \/>\r<br>16. function updatePopulation(countryCode, newPopulation) { <br \/>\r<br>17. __________ <br \/>\r<br>18. } <br \/>\r<br>19. <br \/>\r<br>20. updatePopulation('CAN', 38000000); <br \/>\r<br>21. console.log(countries.CAN.population);<\/div><input type='hidden' name='question_id[]' id='qID_43' value='390726' \/><input type='hidden' id='answerType390726' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390726[]' id='answer-id-1519569' class='answer   answerof-390726 ' value='1519569'   \/><label for='answer-id-1519569' id='answer-label-1519569' class=' answer'><span>countries[countryCode].population = newPopulation;<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390726[]' id='answer-id-1519570' class='answer   answerof-390726 ' value='1519570'   \/><label for='answer-id-1519570' id='answer-label-1519570' class=' answer'><span>countries.update(countryCode, { population: newPopulation });<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390726[]' id='answer-id-1519571' class='answer   answerof-390726 ' value='1519571'   \/><label for='answer-id-1519571' id='answer-label-1519571' class=' answer'><span>countries.countryCode.population = newPopulation;<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390726[]' id='answer-id-1519572' class='answer   answerof-390726 ' value='1519572'   \/><label for='answer-id-1519572' id='answer-label-1519572' class=' answer'><span>countries[countryCode] = { population: newPopulation };<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-44' style=';'><div id='questionWrap-44'  class='   watupro-question-id-390727'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>44. <\/span>Consider the following JavaScript code: <br \/>\r<br>1. class Vehicle { <br \/>\r<br>2. constructor(make, model) { <br \/>\r<br>3. this.make = make; <br \/>\r<br>4. this.model = model; <br \/>\r<br>5. } <br \/>\r<br>6. } <br \/>\r<br>7. <br \/>\r<br>8. class Car extends Vehicle { <br \/>\r<br>9. constructor(make, model, year) { <br \/>\r<br>10. super(make, model); <br \/>\r<br>11. this.year = year; <br \/>\r<br>12. } <br \/>\r<br>13. } <br \/>\r<br>14. <br \/>\r<br>15. let myCar = new Car('Toyota', 'Corolla', 2020); <br \/>\r<br>16. console.log(myCar); <br \/>\r<br>What will be the output of console.log(myCar)?<\/div><input type='hidden' name='question_id[]' id='qID_44' value='390727' \/><input type='hidden' id='answerType390727' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390727[]' id='answer-id-1519573' class='answer   answerof-390727 ' value='1519573'   \/><label for='answer-id-1519573' id='answer-label-1519573' class=' answer'><span>{ make: 'Toyota', model: 'Corolla', year: undefined }<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390727[]' id='answer-id-1519574' class='answer   answerof-390727 ' value='1519574'   \/><label for='answer-id-1519574' id='answer-label-1519574' class=' answer'><span>{ year: 2020 }<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390727[]' id='answer-id-1519575' class='answer   answerof-390727 ' value='1519575'   \/><label for='answer-id-1519575' id='answer-label-1519575' class=' answer'><span>{ make: 'Toyota', model: 'Corolla' }<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390727[]' id='answer-id-1519576' class='answer   answerof-390727 ' value='1519576'   \/><label for='answer-id-1519576' id='answer-label-1519576' class=' answer'><span>{ make: 'Toyota', model: 'Corolla', year: 2020 }<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-45' style=';'><div id='questionWrap-45'  class='   watupro-question-id-390728'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>45. <\/span>Which of the following code snippets correctly demonstrates creating a new array by merging two arrays using the spread operator, and then adding a new element to the beginning of the merged array?<\/div><input type='hidden' name='question_id[]' id='qID_45' value='390728' \/><input type='hidden' id='answerType390728' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390728[]' id='answer-id-1519577' class='answer   answerof-390728 ' value='1519577'   \/><label for='answer-id-1519577' id='answer-label-1519577' class=' answer'><span>let arr1 = [1, 2, 3];let arr2 = [4, 5, 6];let merged = [...arr1, ...arr2];merged.unshift(0);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390728[]' id='answer-id-1519578' class='answer   answerof-390728 ' value='1519578'   \/><label for='answer-id-1519578' id='answer-label-1519578' class=' answer'><span>let arr1 = [1, 2, 3];let arr2 = [4, 5, 6];let merged = [...arr1, ...arr2];merged.push(0);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390728[]' id='answer-id-1519579' class='answer   answerof-390728 ' value='1519579'   \/><label for='answer-id-1519579' id='answer-label-1519579' class=' answer'><span>let arr1 = [1, 2, 3];let arr2 = [4, 5, 6];let merged = [arr1, arr2];merged.unshift(0);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390728[]' id='answer-id-1519580' class='answer   answerof-390728 ' value='1519580'   \/><label for='answer-id-1519580' id='answer-label-1519580' class=' answer'><span>let arr1 = [1, 2, 3];let arr2 = [4, 5, 6];let merged = arr1.concat(...arr2);merged.unshift(0);<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-46' style=';'><div id='questionWrap-46'  class='   watupro-question-id-390729'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>46. <\/span>Which of the following correctly generates a random integer between 1 and 10 (inclusive)?<\/div><input type='hidden' name='question_id[]' id='qID_46' value='390729' \/><input type='hidden' id='answerType390729' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390729[]' id='answer-id-1519581' class='answer   answerof-390729 ' value='1519581'   \/><label for='answer-id-1519581' id='answer-label-1519581' class=' answer'><span>return Math.ceil(Math.random() * 10);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390729[]' id='answer-id-1519582' class='answer   answerof-390729 ' value='1519582'   \/><label for='answer-id-1519582' id='answer-label-1519582' class=' answer'><span>return Math.floor(Math.random() * 10) + 1;<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390729[]' id='answer-id-1519583' class='answer   answerof-390729 ' value='1519583'   \/><label for='answer-id-1519583' id='answer-label-1519583' class=' answer'><span>return Math.abs(Math.random() * 10);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390729[]' id='answer-id-1519584' class='answer   answerof-390729 ' value='1519584'   \/><label for='answer-id-1519584' id='answer-label-1519584' class=' answer'><span>return Math.round(Math.random() * 10);<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-47' style=';'><div id='questionWrap-47'  class='   watupro-question-id-390730'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>47. <\/span>You have the following JavaScript code: <br \/>\r<br>1. function createCounter() { <br \/>\r<br>2. let count = 0; <br \/>\r<br>3. return { <br \/>\r<br>4. increment: function() { <br \/>\r<br>7. }, <br \/>\r<br>8. decrement: function() { <br \/>\r<br>11. } <br \/>\r<br>12. }; <br \/>\r<br>13. } <br \/>\r<br>14. <br \/>\r<br>15. const counter = createCounter(); <br \/>\r<br>16. console.log(counter.increment()); \/\/ Output? <br \/>\r<br>17. console.log(counter.decrement()); \/\/ Output? <br \/>\r<br>18. console.log(counter.increment()); \/\/ Output? <br \/>\r<br>What will be the output of the above code when it is executed?<\/div><input type='hidden' name='question_id[]' id='qID_47' value='390730' \/><input type='hidden' id='answerType390730' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390730[]' id='answer-id-1519585' class='answer   answerof-390730 ' value='1519585'   \/><label for='answer-id-1519585' id='answer-label-1519585' class=' answer'><span>undefinedundefinedundefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390730[]' id='answer-id-1519586' class='answer   answerof-390730 ' value='1519586'   \/><label for='answer-id-1519586' id='answer-label-1519586' class=' answer'><span>1-10<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390730[]' id='answer-id-1519587' class='answer   answerof-390730 ' value='1519587'   \/><label for='answer-id-1519587' id='answer-label-1519587' class=' answer'><span>101<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390730[]' id='answer-id-1519588' class='answer   answerof-390730 ' value='1519588'   \/><label for='answer-id-1519588' id='answer-label-1519588' class=' answer'><span>000<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-48' style=';'><div id='questionWrap-48'  class='   watupro-question-id-390731'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>48. <\/span>Consider the following code snippet: <br \/>\r<br>1. const myObject = { <br \/>\r<br>2. data: [10, 20, 30], <br \/>\r<br>3. [Symbol.iterator]: function() { <br \/>\r<br>4. let index = 0; <br \/>\r<br>5. const self = this; <br \/>\r<br>6. return { <br \/>\r<br>14. }; <br \/>\r<br>15. } <br \/>\r<br>16. }; <br \/>\r<br>17. <br \/>\r<br>18. const iterator = myObject[Symbol.iterator](); <br \/>\r<br>19. console.log(iterator.next().value); \/\/ ? <br \/>\r<br>20. console.log(iterator.next().value); \/\/ ? <br \/>\r<br>21. console.log(iterator.next().value); \/\/ ? <br \/>\r<br>22. console.log(iterator.next().value); \/\/ ? <br \/>\r<br>What will be the output of the above code?<\/div><input type='hidden' name='question_id[]' id='qID_48' value='390731' \/><input type='hidden' id='answerType390731' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390731[]' id='answer-id-1519589' class='answer   answerof-390731 ' value='1519589'   \/><label for='answer-id-1519589' id='answer-label-1519589' class=' answer'><span>10101010<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390731[]' id='answer-id-1519590' class='answer   answerof-390731 ' value='1519590'   \/><label for='answer-id-1519590' id='answer-label-1519590' class=' answer'><span>102030undefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390731[]' id='answer-id-1519591' class='answer   answerof-390731 ' value='1519591'   \/><label for='answer-id-1519591' id='answer-label-1519591' class=' answer'><span>undefinedundefinedundefinedundefined<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390731[]' id='answer-id-1519592' class='answer   answerof-390731 ' value='1519592'   \/><label for='answer-id-1519592' id='answer-label-1519592' class=' answer'><span>10203040<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-49' style=';'><div id='questionWrap-49'  class='   watupro-question-id-390732'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>49. <\/span>You are working on a web application that fetches user data from a remote server using the Fetch API. You need to handle the response correctly to update the UI with the user's information. <br \/>\r<br>What is the correct way to handle the asynchronous fetch request to ensure that the user data is correctly processed and displayed?<\/div><input type='hidden' name='question_id[]' id='qID_49' value='390732' \/><input type='hidden' id='answerType390732' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390732[]' id='answer-id-1519593' class='answer   answerof-390732 ' value='1519593'   \/><label for='answer-id-1519593' id='answer-label-1519593' class=' answer'><span>const response = fetch('https:\/\/api.example.com\/user\/1');const data = response.json();console.log(data);<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390732[]' id='answer-id-1519594' class='answer   answerof-390732 ' value='1519594'   \/><label for='answer-id-1519594' id='answer-label-1519594' class=' answer'><span>fetch('https:\/\/api.example.com\/user\/1') .then(response =&gt; response.json()) .then(data =&gt; { console.log(data); }) .catch(error =&gt; console.error('Error:', error));<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390732[]' id='answer-id-1519595' class='answer   answerof-390732 ' value='1519595'   \/><label for='answer-id-1519595' id='answer-label-1519595' class=' answer'><span>fetch('https:\/\/api.example.com\/user\/1') .then(response =&gt; { const data = response.json(); console.log(data); });<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390732[]' id='answer-id-1519596' class='answer   answerof-390732 ' value='1519596'   \/><label for='answer-id-1519596' id='answer-label-1519596' class=' answer'><span>async function fetchData() { const response = await fetch('https:\/\/api.example.com\/user\/1'); const \r\ndata = response.json(); console.log(data);}fetchData();<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-50' style=';'><div id='questionWrap-50'  class='   watupro-question-id-390733'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>50. <\/span>What will be the output of the following code snippet? <br \/>\r<br>1. let a = new Number(5); <br \/>\r<br>2. let b = 5; <br \/>\r<br>3. console.log(a == b, a === b);<\/div><input type='hidden' name='question_id[]' id='qID_50' value='390733' \/><input type='hidden' id='answerType390733' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390733[]' id='answer-id-1519597' class='answer   answerof-390733 ' value='1519597'   \/><label for='answer-id-1519597' id='answer-label-1519597' class=' answer'><span>false false<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390733[]' id='answer-id-1519598' class='answer   answerof-390733 ' value='1519598'   \/><label for='answer-id-1519598' id='answer-label-1519598' class=' answer'><span>true false<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390733[]' id='answer-id-1519599' class='answer   answerof-390733 ' value='1519599'   \/><label for='answer-id-1519599' id='answer-label-1519599' class=' answer'><span>true true<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-390733[]' id='answer-id-1519600' class='answer   answerof-390733 ' value='1519600'   \/><label for='answer-id-1519600' id='answer-label-1519600' class=' answer'><span>false true<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-51'>\n\t<div class='question-content'>\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.dumpsbase.com\/freedumps\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\" \/>&nbsp;Loading...\t<\/div>\n<\/div>\n\n<br \/>\n\t\n\t\t\t<div class=\"watupro_buttons flex \" id=\"watuPROButtons9793\" >\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; 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   \t \n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>You can believe that the JSA-41-01 dumps (V8.02) of DumpsBase are the best study materials, which can substantially strengthen your odds of triumph. We have shared the JSA-41-01 free dumps (Part 1, Q1-Q40) online to help you check the quality. From these demo questions, you can find that the JSA-41-01 dumps (V8.02) should be helpful [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18748,10099],"tags":[18749,18804],"class_list":["post-100444","post","type-post","status-publish","format-standard","hentry","category-js-institute","category-python-institute","tag-jsa-41-01-dumps","tag-jsa-41-01-free-dumps"],"_links":{"self":[{"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/posts\/100444","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/comments?post=100444"}],"version-history":[{"count":1,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/posts\/100444\/revisions"}],"predecessor-version":[{"id":100445,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/posts\/100444\/revisions\/100445"}],"wp:attachment":[{"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/media?parent=100444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/categories?post=100444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dumpsbase.com\/freedumps\/wp-json\/wp\/v2\/tags?post=100444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}