Salesforce JavaScript-Developer-I Valid Exam Format | Reliable JavaScript-Developer-I Exam Simulations

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Salesforce Certified JavaScript Developer I exam is a computer-based test that consists of 60 multiple-choice questions that the candidates need to complete within 105 minutes. JavaScript-Developer-I Exam is designed to assess the candidate's understanding of the key aspects of JavaScript development on the Salesforce platform, including the architecture of Salesforce Lightning, the Apex programming language, and the use of Visualforce and other web technologies.

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Passing the Salesforce JavaScript-Developer-I certification exam requires a solid understanding of Salesforce development concepts, as well as a strong knowledge of JavaScript and programming principles. After passing the exam, candidates will be awarded the Salesforce Certified JavaScript Developer I credential, which is recognized by employers and industry professionals worldwide. Salesforce Certified JavaScript Developer (JS-Dev-101) certification can help developers to advance their careers and increase their earning potential.

Salesforce JavaScript-Developer-I Exam covers a wide range of topics, including data modeling, Apex programming, JavaScript development, Visualforce development, and Lightning Component development. Candidates must demonstrate their proficiency in each of these areas to pass the exam. JavaScript-Developer-I exam also tests the candidate's ability to design and develop custom applications using Salesforce tools and technologies.

Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q87-Q92):

NEW QUESTION # 87
What are two unique features of functions defined with a fat arrow as compared to normal function definition?
Choose 2 answers

A. The function receives an argument that is always in scope, called parentThis, which is the enclosing lexical scope.
B. If the function has a single expression in the function body, the expression will be evaluated and implicit returned.
C. The function uses the this from the enclosing scope.
D. The function generated its own this making it useful for separating the function's scope from its enclosing scope.

Answer: B,D

NEW QUESTION # 88
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. super (body, author, viewCount) {
C. constructor (body, author, viewCount) {
D. constructor() {

Answer: C

NEW QUESTION # 89
Universal Container (UC) notices that its application allows users to search for account makes a network request each time a key is pressed. This results in too many request for the server to handle.
O address this problem, UC decides to implement a deboune function on the search string change handler. Choose 3 answers

A. When the search string changes, enqueue the request within a setTimeout.
B. Store the timeId of the setTimeout last enqueued by the search string change handler.
C. If there is an existing settimeout and the search string changes, allow the existing setTimeout to finish, and do not enqueue a settimeout.
D. If the there is an existing setTimeout and the search string changes, cancel the existing setTimeout using the persisted timeout replace it with a new setTimeout.
E. Ensure that the network request has the property debounce set to true,

Answer: A,D,E

NEW QUESTION # 90
Refer to the code below:
let o = {
get js() {
let city1 = String("st. Louis");
let city2 = String(" New York");
return {
firstCity: city1.toLowerCase(),
secondCity: city2.toLowerCase(),
}
}
}
What value can a developer expect when referencing o.js.secondCity?

A. ' new york '
B. An error
C. Undefined
D. ' New York '

Answer: A

NEW QUESTION # 91
A developer creates a generic function to log custom messages in the console. To do this, the function below is implemented.
01 function logStatus(status){
02 console./*Answer goes here*/{'Item status is: %s', status};
03 }
Which three console logging methods allow the use of string substitution in line 02?

A. Info
B. Message
C. Assert
D. Error
E. Log

Answer: A,C,E

NEW QUESTION # 92
......

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