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 JavaScript-Developer-I Dumps with Practice Exam Questions Answers

Questions: 178 questions

Last Update: May 12, 2022

Salesforce Certification Exam JavaScript-Developer-I has been designed to measure your skills in handling the technical tasks mentioned in the certification syllabus

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JavaScript-Developer-I Questions and Answers

Question # 1

developer wants to use a module named universalContainersLiband them call functions

from it.

How should a developer import every function from the module and then call the fuctions foo

and bar ?


import * ad lib from ‘/path/universalContainersLib.js’;;;


import (foo, bar) from ‘/path/universalContainersLib.js’;




import all from ‘/path/universalContaineraLib.js’;;;


import * from ‘/path/universalContaineraLib.js’;;;

Question # 2

Given code below:

setTimeout (() => (


). 0);


New Promise ((resolve, reject )) = > (

setTimeout(() => (


). 1000);

)).catch(() => (




What is logged to the console?


2 1 4 3 5


2 5 13 4


1 2 4 3 5


1 2 5 3 4

Question # 3

Given the code below:

const delay = sync delay => {

Return new Promise((resolve, reject) => {

setTimeout (resolve, delay);});};

const callDelay =async () =>{

const yup =await delay(1000);


What is logged to the console?


1 2 3


1 3 2


2 1 3


2 3 1

Question # 4

Refer to the code below:

functionchangeValue(param) {

Param =5;


Let a =10;

Let b =5;


Const result = a+ “ - ”+ b;

What is the value of result when code executes?


10 -10


5 -5


5 - 10


10 - 5

Question # 5

A developer is working on an ecommerce website where the delivery date is dynamically

calculated based on the current day. The code line below is responsible for this calculation.

Const deliveryDate = new Date ();

Due to changes in the business requirements, the delivery date must now be today’s

date + 9 days.

Which code meets thisnew requirement?


deliveryDate.setDate(( new Date ( )).getDate () +9);


deliveryDate.setDate( Date.current () + 9);

C. = new Date(+9) ;

D. = Date.current () + 9;

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