Verified JavaScript-Developer-I dumps Q&As - 2024 Latest JavaScript-Developer-I Download
Dumps Questions [2024] Pass for JavaScript-Developer-I Exam
Salesforce JavaScript-Developer-I certification exam is an important milestone for professionals who want to validate their technical skills in JavaScript development within the Salesforce platform. Salesforce Certified JavaScript Developer I Exam certification is designed for developers who use JavaScript to build custom applications, automate business processes, and integrate Salesforce with other applications. The Salesforce Certified JavaScript Developer I credential is recognized globally and demonstrates that the holder has the knowledge and expertise to develop and deploy custom solutions on Salesforce.
Salesforce JavaScript-Developer-I Exam is a computer-based exam that consists of 60 multiple-choice questions. JavaScript-Developer-I exam is designed to test the candidate's knowledge and skills in various areas of JavaScript development on the Salesforce platform, including data types, variables, operators, flow control, functions, events, and more.
NEW QUESTION # 102
A developer removes the HTML class attributes from the check button, so now it is simply:
<button>checkout<button>.
There is a test verify the existence of the checkout button, however it look for a button with class'' blue''. The test fails because no such button is f.
Which type of test category describes this test?
- A. False positive
- B. True positive
- C. True negative
- D. False negative
Answer: B
NEW QUESTION # 103
Which option is true about the strict mode in imported modules?
- A. Add the statement use non-strict, before any other statements in the module to enable not-strict mode.
- B. Imported modules are in strict mode whether you declare them as such or not.
- C. Add the statement use strict =false; before any other statements in the module to enable not- strict mode.
- D. You can only reference notStrict() functions from the imported module.
Answer: D
NEW QUESTION # 104
A developer writers the code below to calculate the factorial of a given number.
Function factorial(number) {
Return number + factorial(number -1);
}
factorial(3);
What is the result of executing line 04?
- A. RuntimeError
- B. -Infinity
- C. 0
- D. 1
Answer: A
NEW QUESTION # 105
Given the HTML below:
Which statement adds the priority-account CSS class to the Universal Containers row?
- A. document. querySelector (#row-uc'). classes-push('priority-account');
- B. document. queryselector('#row-uc').ClassList.add('priority-account');
- C. document. getElementByid('row-uc').addClass('priority-account*);
- D. document. querySelectorAll('#row-uc') -classList.add("priority-accour');
Answer: B
NEW QUESTION # 106
A developer creates a class that represents a blog post based on the requirement that a
Post should have a body author and view count.
The Code shown Below:
Class Post {
// Insert code here
This.body =body
This.author = author;
this.viewCount = viewCount;
}
}
Which statement should be inserted in the placeholder on line 02 to allow for a variable to be set
to a new instanceof a Post with the three attributes correctly populated?
- A. Function Post (body, author, viewCount) {
- B. constructor (body, author, viewCount) {
- C. super (body, author, viewCount) {
- D. constructor() {
Answer: B
NEW QUESTION # 107
Refer to the code below:
01 const server = require('server');
02 /* Insert code here */
A developer imports a library that creates a web server. Theimported library uses events and callbacks to start the servers Whichcode should be inserted at the line 03 to set up an event and start the web server ?
- A. server()
- B. serve(( port) => (
- C. console.log( 'Listening on ', port);
- D. server.on(' connect ' , ( port) => {console.log('Listening on ' , port) ;})
- E. Server.start ();
Answer: D
NEW QUESTION # 108
Refer to the code below.
After changing the string index values, the of atr is Javascript''. What is the reason for this value?
- A. Non-primitive values are mutable.
- B. Primitive values are mutable.
- C. Non-primitive values are immutable.
- D. Primitive values are immutable
Answer: A
NEW QUESTION # 109
Given the following code, what is the value of x?
let x = '15' + (10 * 2);
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 110
Which three actions can be done using the JavaSript browser console?
Choose 3 answer
- A. View and change security cookies
- B. Run code a that is not related to the page.
- C. View, change, and debug the JavaScript code of the page.
- D. View and change the DOM of the page.
- E. Display a report showing the performance of a page.
Answer: B,C,D
NEW QUESTION # 111
Given a value, which three options can a developer use to detect of the value is NaN?
Choose 3 answers
- A. Value == NaN
- B. Number , isNaN(value)
- C. Object , is ( value, NaN)
- D. Value == Number, NaN
- E. Value I== value
Answer: A,B,C
NEW QUESTION # 112
Considering type coercion, What does the following expression evaluate to?
True + ) + '100 ' + null
- A. 0
- B. 1
- C. '3100null'
- D. '4100null'
Answer: D
NEW QUESTION # 113
The developer has a function that prints "Hello" to an input name. To test this, thedeveloper created a function that returns "World". However the following snippet does not print " Hello World".
What can the developer do to change the code to print "Hello World" ?
- A. Change line 5 to function world ( ) {
- B. Change line 7 to ) () ;
- C. Change line 9 to sayHello(world) ();
- D. Change line 2 to console.log('Hello' , name() );
Answer: D
NEW QUESTION # 114
Given the HTML below:
Which statement adds the priority-account CSS class to the Unversal Containers row?
- A. Document. getElementById ( 'row-uc') addClass ( ' priority-account');
- B. Document. querySelector ( 'row-uc') . classList. Add ( 'pariority-account') ;
- C. Document. querySelectorAll ( '# row-uc ') .classList. add ('priority-account');
- D. Document. queryselector ('# row-uc') ,classes. Push (' priority-account');
Answer: B
NEW QUESTION # 115
Refer to the code below?
Let searchString = ' look for this ';
Which two options remove the whitespace from the beginning of searchString?
Choose 2 answers
- A. trimStart(searchString);
- B. searchString.replace(/*\s\s*/, '');
- C. searchString.trimStart();
- D. searchString.trimEnd();
Answer: B,C
NEW QUESTION # 116
is below:
<input type="file" onchange="previewFile()">
<img src="" height="200"alt="Image Preview..."/>
The JavaScript portion is:
01 functionpreviewFile(){
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 04 and 08, which code allows the user to select an image from their local computer , and to display the image in the browser?
- A. 04 const reader = new File();08 if (file) reader.readAsDataURL(file);
- B. 04 const reader = new FileReader();08 if (file) reader.readAsDataURL(file);
- C. 04 const reader = new File();08 if (file) URL.createObjectURL(file);
- D. 04 const reader = new FileReader();08if (file) URL.createObjectURL(file);
Answer: B
NEW QUESTION # 117
......
What is the duration, language, and format of Salesforce JavaScript-Developer-I Exam
- Passing score 65%
- This exam is offered in only English.
- The type of questions is Multiple Choice and situation-based questions.
- There is a time limit of 105 minutes for the exam.
- This exam consists of 60 questions
Updated Salesforce Study Guide JavaScript-Developer-I Dumps Questions: https://www.dumpsquestion.com/JavaScript-Developer-I-exam-dumps-collection.html
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