
Quiz de fin de module JavaScript
Quiz
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Other
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Professional Development
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Practice Problem
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Medium
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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