Quiz de fin de module JavaScript

Quiz de fin de module JavaScript

Professional Development

10 Qs

quiz-placeholder

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Quiz de fin de module JavaScript

Quiz de fin de module JavaScript

Assessment

Quiz

Other

Professional Development

Practice Problem

Medium

Created by

wladimir perfiloff

Used 3+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle est la bonne façon de déclarer une variable modifiable en JavaScript ?

const x = 5;

var x = 5;

let x = 5;

define x = 5;

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quel type renvoie `typeof null` ?

"null"

"undefined"

"object"

"boolean"

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Que va afficher ce code ?

console.log(2 + "2");

4

22

NaN

undefined

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Laquelle de ces fonctions est une fonction fléchée ?

function() {}

() => {}

=> () {}

func() => {}

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quel mot-clé permet d'arrêter une boucle ?

stop

end

break

return

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Quelle méthode permet d'ajouter un élément à la fin d'un tableau ?

push()

add()

append()

insert()

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Que va afficher ce code ?

console.log([1, 2, 3].length);

2

3

undefined

Erreur

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