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Salesforce JavaScript-Developer-I Exam With Confidence Using Practice Dumps

Exam Code:
JavaScript-Developer-I
Exam Name:
Salesforce Certified JavaScript Developer I (WI25)
Certification:
Salesforce Developer
Vendor:
Salesforce
Questions:
215
Last Updated:
Apr 30, 2025
Exam Status:
Stable
Salesforce JavaScript-Developer-I

JavaScript-Developer-I: Salesforce Developer Exam 2025 Study Guide Pdf and Test Engine

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Salesforce Certified JavaScript Developer I (WI25) Questions and Answers

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Question 1

Refer to HTML below:

This card is smaller.

The width and height of this card is determined by its

contents.

Which expression outputs the screen width of the element with the ID card-01?

Options:

A.

document.getElementById(‘ card-01 ’).getBoundingClientRest().width

B.

document.getElementById(‘ card-01 ’).style.width

C.

document.getElementById(‘ card-01 ’).width

D.

document.getElementById(‘ card-01 ’).innerHTML.lenght*e

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Question 2

A developer is setting up a Node,js server and is creating a script at the root of the source code, index,js, that will start the server when executed. The developer declares a variable that needs the folder location that the code executes from.

Which global variable can be used in the script?

Options:

A.

window.location

B.

_filename

C.

_dirname

D.

this.path

Question 3

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?

Options:

A.

Promise.reject(‘cool error here’).then(error => console.error(error));

B.

Promise.reject(‘cool error here’).catch(error => console.error(error));

C.

New Promise((resolve, reject) => (throw ‘cool error here’}).catch(error =>

console.error(error)) ;

D.

New Promise(() => (throw ‘cool error here’}).then(null, error => console.error(error)));

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