JS khá mệt

JS khá mệt

University

20 Qs

quiz-placeholder

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JS khá mệt

JS khá mệt

Assessment

Quiz

Mathematics

University

Practice Problem

Medium

Created by

VJET STUDIO

Used 65+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Chọn các đáp án đúng

Cách khai báo biến hợp lệ?

Var a= 8;

const a= 8;

let a;

const a;

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

6

5

11

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Khai báo biến dùng const có dụng gì?

Không

Có. Vì nó mang giá trị undefined

Có. Vì nó cố định biến đó không thể thay đổi

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

const và let ra đời trong phiên bản nào?

vanilaJS

ES5

ES6

ES7

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cho điểm câu này ai nhanh thì điểm + cao :))

Pick 2

1

2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Dòng 1 x= 5;

Dòng 2 x= 5;

Dòng 1 x= undefined;

Dòng 2 x= 5;

Dòng 1 x= undefined;

Dòng 2 x= undefined;

Dòng 1 x= 5;

Dòng 2 x= undefined;

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

5

10

undefined

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