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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

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

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q141-Q146):

NEW QUESTION # 141
Given the requirement to refactor the code above to JavaScript class format, which class definition is correct?

Answer: B

NEW QUESTION # 142
Which two console logs output NaN?
Choose 2 answers | |

A. console.log(10 / Number('5) ) ;
B. console.log(10 / 0);
C. console.loeg(10 / 'five');
D. console.log(parseInt ' ("two')) ;

Answer: C,D

NEW QUESTION # 143
What is the result of the code block?

A. The console logs 'flag' and then an error is thrown.
B. The console logs 'flag' and another flag.
C. An error is thrown.
D. The console logs only 'flag'.

Answer: D

NEW QUESTION # 144
A developer creates an object where its properties should be immutable and prevent properties from being added or modified.
Which method should be used to execute this business requirement ?

A. Object.lock()
B. Object.eval()
C. Object.freeze()
D. Object.const()

Answer: C

NEW QUESTION # 145
Refer to the code below:

What is the value of result after line 10 executes?

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

Answer: D

NEW QUESTION # 146
......

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