Job offersCompaniesTestsBlogI'm an employerSign upLog in
fr
fr
Home>IT Tests>Questions>Front-end developer

833 interview questionsfor Front-end developer (2024)

Test your technical skills before an interview of Front-end developer with 833 corrected questions. Beginner, Intermediate or Expert level.

or
Technology
Profession
Sort by
Newest
Most popular
Last review
Filter by
Published
832
To review
1
833 questions
Medium
32 votes1813 runs3 comments

Understanding the differences between `map()` and `forEach()` methods in JavaScript

Web developer
Vincent Cotroat Jan 18, 2024
Medium
19 votes1662 runs2 comments

Write a JavaScript function that fetches data from an API and logs it to the console.

Web developer
promises
async
Vincent Cotroat Mar 28, 2023
Easy
17 votes4477 runs0 comment

Write the non-JSX equivalent of the following code:

Web developer
react
jsx
Victor Sabatierat Jan 4, 2022
Easy
16 votes2549 runs2 comments

Create a form with two mandatory fields in Angular

Web developer
angular
form
validation
Anonymous authorat Jan 4, 2022
Easy
14 votes4477 runs1 comment

Write the missing code to render the children of the UserProfile component.

Web developer
props
list
Victor Sabatierat Jan 4, 2022
Medium
11 votes4496 runs0 comment

Write a React component as a function

Web developer
react
functions
state
Clément Devosat Jan 4, 2022
Medium
11 votes2510 runs1 comment

Which provider is recommended for DOM manipulation in Angular?

Web developer
angular
dom
Anonymous authorat Jan 4, 2022
Easy
11 votes1852 runs1 comment

Fix the following Javascript loop:

Web developer
loops
conditions
Camilleat Apr 27, 2023
Hard
10 votes2477 runs1 comment

Which of these methods, allowing to create Providers, does not exist in Angular?

Web developer
angular
providers
Anonymous authorat Mar 28, 2023
Easy
9 votes3300 runs1 comment

Call a function on the first render of a React component

Web developer
react
hooks
Clément Devosat Jan 4, 2022
Easy
8 votes2384 runs1 comment

The certificate variable is not attainable outside the if loop

Web developer
variables
scope
Kahinaat Apr 6, 2022
Easy
8 votes931 runs0 comment

What is TypeScript?

Web developer
typescript
javascript
angular
Léoat Mar 29, 2022
Hard
7 votes1797 runs1 comment

Which of the following equality(s) are true? 0 == '', 'f' + 1 == 'f1'

Front-end developer
javascript
equality
Jean-marie Cléryat Jan 4, 2022
Easy
6 votes2852 runs0 comment

UseState and useEffect in React

Web developer
state
useState
useEffect
Vincent Cotroat Jan 4, 2022
Easy
6 votes2366 runs0 comment

Write a React component that displays the sum of two numbers

Web developer
react
components
state
Vincent Cotroat Jan 4, 2022
Easy
6 votes2241 runs1 comment

Use spread operator to split an array into two arrays in Javascript

Web developer
array
spread operator
Kahinaat Apr 6, 2022
Medium
6 votes1828 runs0 comment

What can we say about the following code?

Front-end developer
javascript
variables
Jean-marie Cléryat Jan 4, 2022
Hard
6 votes1769 runs2 comments

Write a Javascript code that prints the indexes of an array.

Front-end developer
array
for loop
Jean-marie Cléryat Nov 8, 2023
Medium
5 votes3406 runs2 comments

Fix the useMemo hook in this React component.

Web developer
react
hooks
Clément Devosat Feb 6, 2024
Medium
5 votes2238 runs0 comment

In an Angular directive, which decorator should we use to listen for an event of the element that this same directive is placed on?

Web developer
directives
events
Anonymous authorat Jan 4, 2022
Front-end developer tests