JavaScript-Developer-I Practice Exam Questions and Answers

A developer at Universal Containers is creating their new landing page based on HTML, CSS, and JavaScript. The website includes multiple external resources that are loaded when the page is opened.

To ensure that visitors have a good experience, a script named personalizeWebsiteContent needs to be executed when the webpage is loaded and there is no need to wait for the resources to be available.

Which statement should be used to call personalizeWebsiteContent based on the above business requirement?

Refer to the following code that imports a module named utils:

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

foo() ;

bar() ;

Which two implementations of Utils.js export foo and bar such that the code above runs without

error?

Choose 2 answers

A developer has an is Dog function that takes one argument cat. They want to schedule the function to run every minute.

What is the correct syntax for scheduling this function?

A developer wants to define a function log to be used a few times on a single-file JavaScript script.

01 // Line 1 replacement

02 console.log('"LOG:', logInput);

03 }

Which two options can correctly replace line 01 and declare the function for use?

Choose 2 answers

The developer wants to test the array shown:

const arr = Array(5).fill(0)

Which two tests are the most accurate for this array ?

Choose 2 answers:

Refer to the following code:

What will the console show when the button is clicked?

A developer wants to create an object from a function in the browser using the code

below:

Function Monster() { this.name = ‘hello’ };

Const z = Monster();

What happens due to lack of the new keyword on line 02?

Given the code below:

Setcurrent URL ();

console.log(‘The current URL is: ‘ +url );

function setCurrentUrl() {

Url = window.location.href:

What happens when the code executes?

Which two options are core Node.js modules?

Choose 2 answers

A developer at Universal Containers creates a new landing page based on HTML, CSS, and

JavaScript TO ensure that visitors have a good experience, a script named personaliseContext

needs to be executed when the webpage is fully loaded (HTML content and all related files ), in

order to do some custom initialization.

Which statement should be used to call personalizeWebsiteContent based on the above

business requirement?