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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

Section	Objectives
Topic 1: Asynchronous JavaScript	- Error handling in async workflows - Promises and async/await - Event loop and concurrency model
Topic 2: JavaScript Language Fundamentals	- Functions, scope, and closures - Data types, variables, and operators - ES6+ syntax and features
Topic 3: Browser and DOM Interaction	- Event handling and propagation - DOM manipulation and traversal - Browser APIs (fetch, storage, timers)
Topic 4: Testing and Debugging	- Unit testing principles - Debugging techniques and tools
Topic 5: Salesforce Platform Integration	- Lightning Web Components (LWC) JavaScript usage - Calling Apex methods from JavaScript - Security considerations in Salesforce JavaScript

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q133-Q138):

NEW QUESTION # 133
developer is trying to convince management that their team will benefit from using Node.js for a backend server that they are going to create. The server will be a web server that handles API requests from a website that the team has already built using HTML, CSS, and JavaScript.
Which three benefits of Node.js can the developer use to persuade their manager?
Choose 3 answers:

A. Uses non-blocking functionality for performant request handling .
B. Performs a static analysis on code before execution to look for runtime errors.
C. Executes server-side JavaScript code to avoid learning a new language.
D. Ensures stability with one major release every few years.
E. Installs with its own package manager to install and manage third-party libraries.

Answer: A,B,E

NEW QUESTION # 134
Given the code below:
const delay = sync delay => {
Return new Promise((resolve, reject) => {
setTimeout (resolve, delay);});};
const callDelay =async () =>{
const yup =await delay(1000);
console.log(1);
What is logged to the console?

A. 1 3 2
B. 1 2 3
C. 2 3 1
D. 2 1 3

Answer: C

NEW QUESTION # 135
Which three browser specific APIs are available for developer to persist data between page loads?
Choose 3 answers

A. cookies
B. global variables
C. localStorage
D. IIFEs
E. indexedDB

Answer: C,D,E

NEW QUESTION # 136
Given the code below:
const copy = JSON.stringify([ new String(' false '), new Bollean( false ), undefined ]);
What is the value of copy?

A. -- [ \"false\" , { } ]--
B. -- [ \"false\" , false, undefined ]--
C. -- [ false, { } ]--
D. -- [ \"false\" ,false, null ]--

Answer: D

NEW QUESTION # 137
Refer to the following array:
Let arr1 = [ 1,2, 3, 4, 5 ];

Which two lines of code result in a second array, arr2 being created such that arr2 is not a reference to arr1?

A. Let arr2 = Array.from(arr1);
B. Let arr2 = arr1;
C. Let arr2 = arr1.sort();
D. Let arr2 = arr1.slice(0, 5);

Answer: A,D

NEW QUESTION # 138
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