- All Exams Instant Download
Which type of test category describes this test?
developer removes the HTML class attribute from the checkout button, so now it is simply: <button>Checkout</button>. There is a test to verify the existence of the checkout button, however it looks for a button with class= “blue”. The test fails because no such button is found. Which type of test...
Which option is a core Node,js module?
Which option is a core Node,js module?A . PathB . IosC . MemoryD . locateView AnswerAnswer: A
What is the value of result after the code executes?
Refer to the code below: Function changeValue(obj) { Obj.value = obj.value/2; } Const objA = (value: 10); Const objB = objA; changeValue(objB); Const result = objA.value; What is the value of result after the code executes? A. 10 B. Nan C. 5 D. UndefinedView AnswerAnswer: C
Which three options can the developer invoke for this function to get a return value of 10?
A developer implements a function that adds a few values. Function sum(num) { If (num == undefined) { Num =0; } Return function( num2, num3){ If (num3 === undefined) { Num3 =0 ; } Return num + num2 + num3; } } Which three options can the developer invoke for...
Which two assert statements are valid tests for the function?
A developer needs to test this function: 01 const sum3 = (arr) => ( 02 if (!arr.length) return 0, 03 if (arr.length === 1) return arr[0], 04 if (arr.length === 2) return arr[0] + arr[1], 05 return arr[0] + arr[1] + arr[2], 06 ); Which two assert statements are valid...
In lines 04 and 08, which code allows the user to select an image from their local computer, and to display the image in the browser?
is below: <input type=”file” onchange=”previewFile()”> <img src=”” height=”200” alt=”Image Preview…”/> The JavaScript portion is: 01 function previewFile(){ 02 const preview = document.querySelector(‘img’); 03 const file = document.querySelector(‘input[type=file]’).files[0]; 04 //line 4 code 05 reader.addEventListener(“load”, () => { 06 preview.src = reader.result; 07 },false); 08 //line 8 code 09 } In lines...
Which method should be used to execute this business requirement?
A developer creates an object where its properties should be immutable and prevent properties from being added or modified. Which method should be used to execute this business requirement?A . Object.const()B . Object.eval()C . Object.lock()D . Object.freeze()View AnswerAnswer: D
What is the value of result when Promise.race executes?
Refer to the code below: Let car1 = new Promise((_ , reject) => setTimeout(reject, 2000, “car 1 crashed in” => Let car2 =new Promise(resolve => setTimeout(resolve, 1500, “car 2 completed”) Let car3 =new Promise(resolve => setTimeout(resolve, 3000, “car 3 completed”) Promise.race(( car1, car2, car3)) .then (value => ( Let result...
What is the value of output after the code executes?
Refer to following code block: Let array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,]; Let output =0; For (let num of array){ if (output >0){ Break; } if(num % 2 == 0){ Continue; } Output +=num; What is the value of output after the code...
What are the values of objBook and newObjBook respectively?
Refer to code below: Const objBook = { Title: ‘Javascript’, }; Object.preventExtensions(objBook); Const newObjBook = objBook; newObjectBook.author = ‘Robert’; What are the values of objBook and newObjBook respectively?A . [title: “javaScript”] [title: “javaScript”]B . {author: “Robert”, title: “javaScript} UndefinedC . {author: “Robert”, title: “javaScript} {author: “Robert”, title: “javaScript}D . {author:...
