Free Practice Salesforce CRT-600 Exam Questions 2025

Stay ahead with 100% Free Certification Preparation for Salesforce JavaScript Developer I (WI25) CRT-600 Dumps Practice Questions

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Total 217 Questions | Updated On: Mar 27, 2025

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Question 1

Refer to the code below:

Let car1 = new Promise((_ , reject) =>

setTimeout(reject, 2000, ''car 1 crashed in'' =>

Let car2 =new Promise(resolve => setTimeout(resolve, 1500, ''car 2 completed'')

Let car3 =new Promise(resolve => setTimeout(resolve, 3000, ''car 3 completed'')

Promise.race(( car1, car2, car3))

.then (value => (

Let result = '$(value) the race.';)}

.catch(arr => {

console.log(''Race is cancelled.'', err);

});

What is the value of result when Promise.race executes?

A : Car 3 completes the race

B : Car 2 completed the race.

C : Car 1 crashed in the race.

D : Race is cancelled.

Answer: B

Question 2

A developer uses a parsed JSON string to work with user information as in the block below:

01 const userInformation ={

02 '' id '' : ''user-01'',

03 ''email'' : ''[email protected]'',

04 ''age'' : 25

Which two options access the email attribute in the object?

Choose 2 answers

A : userInformation(''email'')

B : userInformation.get(''email'')

C : userInformation.email

D : userInformation(email)

Answer: A,C

Question 3

Refer to the code below:

Const resolveAfterMilliseconds = (ms) => Promise.resolve (

setTimeout (( => console.log(ms), ms ));

Const aPromise = await resolveAfterMilliseconds(500);

Const bPromise = await resolveAfterMilliseconds(500);

Await aPromise, wait bPromise;

What is the result of running line 05?

A : aPromise and bPromise run sequentially.

B : Neither aPromise or bPromise runs.

C : aPromise and bPromise run in parallel.

D : Only aPromise runs.

Answer: B

Question 4

Refer to the code below:

console.log(''start);

Promise.resolve('Success') .then(function(value){

console.log('Success');

});

console.log('End');

What is the output after the code executes successfully?

A : EndStartSuccess

B : StartSuccessEnd

C : StartEndSuccess

D : SuccessStartEnd

Answer: C

Question 5

Refer to code below:

Const objBook = {

Title: 'Javascript',

};

Object.preventExtensions(objBook);

Const newObjBook = objBook;

newObjectBook.author = 'Robert';

What are the values of objBook and newObjBook respectively ?

A : [title: ''javaScript''] [title: ''javaScript'']

B : {author: ''Robert'', title: ''javaScript}Undefined

C : {author: ''Robert'', title: ''javaScript}{author: ''Robert'', title: ''javaScript}

D : {author: ''Robert''}{author: ''Robert'', title: ''javaScript}

Answer: A

Page: 1 / 44

Total 217 Questions | Updated On: Mar 27, 2025

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