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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

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

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q113-Q118):

NEW QUESTION # 113
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. True positive
B. False negative
C. True negative
D. False positive

Answer: A

NEW QUESTION # 114
Refer to the code:

Given the code above, which three properties are set pet1?
Choose 3 answers:

A. Name
B. canTalk
C. Owner
D. Size
E. Type

Answer: B,D,E

NEW QUESTION # 115
Refer to the following code block:

What is the console output?

A. > Uncaught Reference Error
B. > Better student Jackie got 70% on test.
C. > Jackie got 70% on test.
D. > Better student Jackie got 100% on test.

Answer: D

NEW QUESTION # 116
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. console.log( 'Listening on ', port);
C. Server.start ();
D. server.on(' connect ' , ( port) => {console.log('Listening on ' , port) ;})
E. serve(( port) => (

Answer: D

NEW QUESTION # 117
developer creates a new web server that uses Node.js. It imports a server library that uses events and callbacks for handling server functionality.
The server library is imported with require and is made available to the code by a variable named server. The developer wants to log any issues that the server has while booting up.
Given the code and the information the developer has, which code logs an error at boost with an event?

A. Try{
server.start();
} catch(error) {
console.log('ERROR', error);
}
B. Server.on ('error', (error) => {
console.log('ERROR', error);
});
C. Server.error ((server) => {
console.log('ERROR', error);
});
D. Server.catch ((server) => {
console.log('ERROR', error);
});

Answer: B

NEW QUESTION # 118
......

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