3605 interview questions for developers (2024)

Medium

61 votes2721 runs4 comments

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

Web developer

Vincent Cotroat Jan 18, 2024

Easy

28 votes2502 runs3 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

28 votes2150 runs0 comment

Write a SQL query to retrieve the list of employees with a salary greater than 5100.

Back-end developer

sql

select

where

Vincent Cotroat Mar 30, 2023

Easy

28 votes1239 runs1 comment

Write a Python function that returns the factorial of a number.

Back-end developer

recursion

Vincent Cotroat Mar 28, 2023

Easy

24 votes5101 runs0 comment

Write the non-JSX equivalent of the following code:

Web developer

react

jsx

Victor Sabatierat Jan 4, 2022

Easy

24 votes3020 runs2 comments

Create a form with two mandatory fields in Angular

Web developer

angular

form

validation

Anonymous authorat Jan 4, 2022

Easy

21 votes1377 runs1 comment

Explain the difference between the `include` and `require` functions in PHP.

Back-end developer

functions

errors

Vincent Cotroat Mar 24, 2023

Easy

20 votes2206 runs

6 comments

Write a Java program that prints 'welovedev'.

Full stack developer

strings

variables

Pierreat Sep 19, 2022

Easy

19 votes5107 runs1 comment

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

Web developer

props

list

Victor Sabatierat Jan 4, 2022

Easy

19 votes2662 runs1 comment

Fix the following Javascript loop:

Web developer

loops

conditions

Camilleat Apr 27, 2023

Easy

16 votes1820 runs0 comment

List the different build modes in Flutter

Mobile developer

build

modes

Clément Devos (W3D Team)at Jan 4, 2022

Medium

15 votes2349 runs0 comment

Explain the prototype scope in Spring

Back-end developer

spring

bean

Anonymous authorat Dec 21, 2021

Hard

15 votes1598 runs0 comment

Write a Python function that prints the elements of a list.

Back-end developer

list

for loop

Théoat Mar 28, 2022

Easy

14 votes2948 runs2 comments

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

Web developer

angular

providers

Anonymous authorat Mar 28, 2023

Easy

14 votes2071 runs1 comment

Update a column in an SQL table

Back-end developer

sql

update

Vincent Cotroat Nov 7, 2023

Easy

14 votes1329 runs1 comment

What is TypeScript?

Web developer

typescript

javascript

angular

Léoat Mar 29, 2022

Medium

13 votes5184 runs0 comment

Write a React component as a function

Web developer

react

functions

state

Clément Devosat Jan 4, 2022

Hard

13 votes2873 runs0 comment

How many times is the condition `(a++ < 15)` evaluated in the following code? ```java int a = 3; while (a++ < 15) { if ((a++ % 5) == 0) break; } ```

Back-end developer

loops

control flow

Thomas De verdièreat Dec 16, 2021

Easy

13 votes2124 runs0 comment

Select only distinct values in a column using SQL

Back-end developer

sql

distinct

Vincent Cotroat Mar 27, 2023

Easy

13 votes1485 runs0 comment

Is the following code valid? class Person { constructor(name, age) { this.name = name; this.age = age; } } const person = new Person('John', 20); console.log(person.name); console.log(person.age);

IT Architect

OOP

javascript

undefined

Eric Hostaleryat Dec 3, 2021

3605 interview questionsfor developers (2024)

Test your developer skills before an interview with 3605 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

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

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

Write a SQL query to retrieve the list of employees with a salary greater than 5100.

Write a Python function that returns the factorial of a number.

Write the non-JSX equivalent of the following code:

Create a form with two mandatory fields in Angular

Explain the difference between the `include` and `require` functions in PHP.

Write a Java program that prints 'welovedev'.

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

Fix the following Javascript loop:

List the different build modes in Flutter

Explain the prototype scope in Spring

Write a Python function that prints the elements of a list.

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

Update a column in an SQL table

What is TypeScript?

Write a React component as a function

How many times is the condition `(a++ < 15)` evaluated in the following code? ```java int a = 3; while (a++ < 15) { if ((a++ % 5) == 0) break; } ```

Select only distinct values in a column using SQL

Is the following code valid? class Person { constructor(name, age) { this.name = name; this.age = age; } } const person = new Person('John', 20); console.log(person.name); console.log(person.age);