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JavaScript-Developer-I PDF



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  • Exam Name: Salesforce Certified JavaScript Developer I (SP24)
  • Last Update: 22-May-2024
  • Questions and Answers: 219
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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?









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?


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


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


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


import * as lib from '/path/universalContainersLib.js';;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?


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


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


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


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

Question # 4

developer is trying to convince management that their team will benefit from using

Node.js for a backend server that they are going to create. The server will be a web server that

handles API requests from a website that the teamhas already built using HTML, CSS, and


Which three benefits of Node.js can the developer use to persuade their manager?

Choose 3 answers:


Installs with its own package manager to install and manage third-party libraries.


Ensures stabilitywith one major release every few years.


Performs a static analysis on code before execution to look for runtime errors.


Executes server-side JavaScript code to avoid learning a new language.


Uses non-blocking functionality for performant requesthandling .

Question # 5

Refer to the code below:

JavaScript-Developer-I question answer

Which value can a developer expect when referencing country,capital,cityString?






An error



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JavaScript-Developer-I Testimonials

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be  Cameron
posted on 05-Dec-2022
5 Stars

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mk  Willey
posted on 24-Nov-2022
5 Stars

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nr  Smith
posted on 08-Mar-2022
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