Test details
Beginner
September 2024
21 minutes
4.3/5(179)
The proposed test allows you to test your skills and knowledge in the Javascript scripting programming language. It is made up of questions intended for people who have already had experience using this language, but not necessarily very advanced. It is also an opportunity to test your general knowledge in an area that is at the heart of all web development today. Here are the concepts covered:
- Array methods
- Variables (types, scope, declaration, mutability)
- object-oriented programming
- loops
- The operators
- Functions
- Instance methods
- Dot notation
- Unit and functional tests
- The evolutions of javascript and its link with ecmascript
This test consists of 20 questions randomly selected from a database of 56 questions in Javascript.Discover all our interview questions and answers here
Test author : Kahina
ETIC INSA technologies is the “junior enterprise” of INSA Lyon. It carries out expertise for companies ranging from multinational groups to very small ones in almost all domains of engineering.
Contributors32
Sample question
Understanding the differences between map() and forEach() methods in JavaScript
const numbers = [1, 2, 3, 4, 5];
const doubledNumbers1 = numbers.forEach((num) => {
return num * 2;
});
const doubledNumbers2 = numbers.map((num) => {
return num * 2;
});
Developers ratings
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