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Score Higher on Verified JavaScript-Developer-I | Salesforce Certified JavaScript Developer (JS-Dev-101) Exam Questions with Answers

Are you ready to take the Salesforce Certified JavaScript Developer (JS-Dev-101)? To learn JavaScript-Developer-I exam questions, smart security solutions, and move IT forward, you need the Salesforce JavaScript-Developer-I Certification. Whether you're making security rules for the whole company or working on hard problems, Salesforce makes sure you're ready for anything. Crack4sure offers study materials and practice problems covering the exam syllabus for Salesforce Courses, including Salesforce Certified JavaScript Developer (JS-Dev-101). Check for daily deals to get products that can help you pass.

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  • Questions: 219 Q&A's With Detailed Explanation
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  • Exam Name: Salesforce Certified JavaScript Developer (JS-Dev-101)
  • Last Update: 04-Dec-2025
  • Questions and Answers: 219
  • Single Choice: 161 Q&A's
  • Multiple Choice: 51 Q&A's

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Last Week Results!

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JavaScript-Developer-I Questions and Answers

Question # 1

Refer to the code below:

let timeFunction =() => {

console.log(‘Timer called.”);

};

let timerId = setTimeout (timedFunction, 1000);

Which statement allows a developer to cancel the scheduled timed function?

A.

removeTimeout(timedFunction);

B.

removeTimeout(timerId);

C.

clearTimeout(timerId);

D.

clearTimeout(timedFunction);

Question # 2

A developer wants to use a module named universalContainersLib and then call functions from it.

How should a developer import every function from the module and then call the functions foo and bar?

A.

import * from '/path/universalContainersLib.js';universalContainersLib. foo ()7universalContainersLib.bar ();

B.

import {foo,bar} from '/path/universalCcontainersLib.js';foo():bar()?

C.

import all from '/path/universalContainersLib.js';universalContainersLib.foo();universalContainersLib.bar ();

D.

import * as lib from '/path/universalContainersLib.js';lib.foo();lib. bar ();

Question # 3

A developer has the following array of hourly wages:

Let arr = (8, 5, 9, 75, 11, 25, 7, 75, , 13, 25);

For workers making less than $10 an hour rate should be multiple by 1.25 and returned in a new array.

How should the developer implement the request?

A.

let arrl = arr.filter((val) => val < 10).map((num) -> num = 1.25);

B.

let arrl = arr .rr.acArray ((val) => ( val < 10 )) ,map((num) => { num * 1.25 ));

C.

let arrl = arr-map((num) => { return ran * 1.25 }).filter((val) -> { return val < 10));

D.

let arrl = arr.filterBy((val) => val < 10 ).aapBy<(num) -> num = ..25 );

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This unique opportunity is available through our Salesforce JavaScript-Developer-I testing engine that provides you with real questions like practice tests for pre-exam evaluation. The practice questions and answers have been taken from the previous Salesforce Certified JavaScript Developer (JS-Dev-101) exam questions and are likely to appear in the next exam too. To obtain a brilliant score, you need to keep practicing with practice questions and answers.

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JavaScript-Developer-I Testimonials

profile 1
mk  Willey
posted on 22-Nov-2025
5 Stars

Failed twice in my exam Salesforce Certified JavaScript Developer I and its exam code JavaScript-Developer-I and when prepared from crack4sure passed with high marks.

profile 2
nr  Smith
posted on 12-Nov-2025
5 Stars

I just wanted to drop you a quick line to say that I stumbled across crack4sure.com today - and what a gem it is! I am most impressed with the comprehensive Study Guide and Detailed Questions and Answers related to Salesforce JavaScript-Developer-I exam that I wanted to attempt. I passed it with 70% score. Thank you very much for sharing your resources.

profile 3
be  Cameron
posted on 04-Nov-2025
5 Stars

The study material and practice tests for Salesforce JavaScript-Developer-I certification exam are very useful. Very good structured and make a lot of sense. I had some similar questions on my exam and I successfully passed it with 75% score. Crack4Sure is great source for Salesforce JavaScript-Developer-I students. Recommended!!!