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Salesforce Javascript-Developer-I Exam Dumps

Get All Salesforce Certified JavaScript Developer (old) Exam Questions with Validated Answers

Javascript-Developer-I Pack
Vendor: Salesforce
Exam Code: Javascript-Developer-I
Exam Name: Salesforce Certified JavaScript Developer (old)
Exam Questions: 219
Last Updated: April 9, 2026
Related Certifications:
Exam Tags: Expert Salesforce JavaScript programmerSalesforce DeveloperFull Stack Developer
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Free Salesforce Javascript-Developer-I Exam Actual Questions

Question No. 1

A developer is trying to handle an error within a function.

Which code segment shows the correct approach to handle an error without propagating it elsewhere?

A)

B)

C)

D)

Show Answer Hide Answer
Correct Answer: D

Question No. 2

A developer is wondering whether to use, Promise.then or Promise.catch, especially

when a Promise throws an error?

Which two promises are rejected?

Which 2 are correct?

Show Answer Hide Answer
Correct Answer: B, C

Question No. 3

Refer to the codebelow:

function foo () {

const a =2;

function bat() {

console.log(a);

}

return bar;

}

Why does the function bar have access to variable a ?

Show Answer Hide Answer
Correct Answer: C

Question No. 4

Refer to the code below:

Async funct on functionUnderTest(isOK) {

If (isOK) return 'OK';

Throw new Error('not OK');

)

Which assertion accurately tests the above code?

Show Answer Hide Answer
Correct Answer: D

Question No. 5

Refer to code below:

Function muFunction(reassign){

Let x = 1;

var y = 1;

if( reassign ) {

Let x= 2;

Var y = 2;

console.log(x);

console.log(y);}

console.log(x);

console.log(y);}

What is displayed when myFunction(true) is called?

Show Answer Hide Answer
Correct Answer: C

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