Test Javascript

Test Javascript with answers to assess your knowledge and prepare for job interviews. Assess your technical level in 20 minutes.

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Test details

Intermediate
November 2023
14 minutes
🇫🇷
🇺🇸
4.3/5(60)

This test is about the following skills:

  • The basics of the language: declaration of variables, manipulation of arrays, calls to functions and associated contexts, etc.
  • The use of JavaScript as an object-to-prototype language to structure its code
  • Knowledge of some classic JavaScript pitfalls
  • Know how to develop JavaScript applications in browsers by making the most of the DOM
  • The culture of the ecosystem around JavaScript to be able to develop faster and more efficiently: JS overlays, the use of JavaScript outside browsers, libraries to make Single-Page Apps.
This test consists of 20 questions randomly selected from a database of 77 questions in Javascript.Discover all our interview questions and answers here
1.
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Axel
3040 points
2.
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GĂ©rald
3017 points
3.
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Erwan
3010 points
4.
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Maxence LEFEBVRE
2984 points
5.
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Frédéric
2964 points

Test author : Bruno Michel

This JavaScript test was designed by an expert, Bruno Michel, currently technical director at AF83.
With over 8 years of development experience, Bruno passionately pushes the boundaries of technology. Technical Director of AF83 by day, Bruno is also a tireless advocate for the development of Open Source communities by night. He is the main developer of LinuxFr.org , the French reference site on Free Software, he also organized the first ParisJS meetup and speaks as a speaker at many events.
Here is his Github

Contributors22
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Sample question

What will the following code display?

var names = ['Lea', 'John', 'Rachel', 'Yehuda'];
(function(){
    for(name in names){
        console.log(name);
    }
})();
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Developers ratings

developer avatar
18/11/2023🇺🇸
console.log("this is a good test")
developer avatar
Emmanuel
07/11/2023🇫🇷
Ce test est trop difficile selon moi.
developer avatar
01/11/2023🇫🇷
trés intèressent test
developer avatar
KHALILI
25/09/2023🇫🇷
tres bon quiz tres bon quiztres bon quiztres bon quiz
developer avatar
Benjamin Fenasse
13/09/2023🇫🇷
Très bon test, questions bien compréhensibles et alliant théorie et pratique