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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

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

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q124-Q129):

NEW QUESTION # 124
Refer to the code below:

What is the result when the Promise in the execute function is rejected?

A. Rejected1 Rejected2 Rejected3 Rejected Rejected Rejected4
B. Rejected
C. Resolved1 Resolved2 Resolved3Resolved4
D. Rejected Resolved

Answer: D

NEW QUESTION # 125
Refer to the code below:

Which code change should be made for the console to log only Row log when 'Click mel' is clicking?

A. Add event,stopPropagation (); to window.onLoad event hadler.
B. Add event,stopPropagation (); to printMessage function.
C. Add event,stopPropagation (); to window,onLoad event hadler.
D. Add event,stopPropagation (); to printMessage function.

Answer: A,D

NEW QUESTION # 126
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 tests for the function?
Choose 2 answers

A. console.assert(sum3(1, '2')) == 12);
B. console.assert(sum3('hello', 2, 3, 4)) === NaN);
C. console.assert(sum3(-3, 2 )) == -1);
D. console.assert(sum3(0)) == 0);

Answer: A,C

NEW QUESTION # 127
Refer to the code below:

What is the value of result after line 10 executes?

A. John undefined
B. Error: myFather.job is not a function
C. undefined Developer
D. John Developer

Answer: D

NEW QUESTION # 128
Refer to the code below:

What is the value result after line 10 executes?

A. Error: myfather.job is not a function
B. John undefined
C. Undefined Developer
D. John Developer

Answer: A

NEW QUESTION # 129
......

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