Variables primitives en JavaScript

Variables primitives en JavaScript

Professional Development

6 Qs

quiz-placeholder

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Variables primitives en JavaScript

Variables primitives en JavaScript

Assessment

Quiz

Computers

Professional Development

Hard

Created by

Gauvain Thery

Used 1+ times

FREE Resource

6 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Avec quoi déclarer une variable en JavaScript ?

var

const

let

public

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

const isTrue = "true";

De quel type est cette constante ?

Boolean

String

Number

Object

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

const bool1 = 0;

const bool2 = Boolean(0);

const bool3 = !bool2;

Que vaut bool3 ?

true

false

1

""

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

const bool1 = 5 < 3;

const bool2 = "hello" === "hello";

const bool3 = bool1 && bool2;

Que vaut bool3 ?

true

false

0

undefined

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Que vaut "rocket".length ?

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

const str1 = 'hello';

const str2 = 'world';

Quelles réponses écrivent 'hello world' ?

str1 + str2

str1 + ' ' + str2

str1 - str2