
Quizz tổng hợp React + TS (HKT)
Quiz
•
Information Technology (IT)
•
University
•
Easy
academy rikkei
Used 2+ times
FREE Resource
74 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Trong ES6, từ khóa nào dùng để khai báo biến có phạm vi block?
A. var
B. const
C. let
D. function
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Từ khóa const dùng để làm gì?
A. Gán lại giá trị nhiều lần
B. Khai bào biến hằng số
C. Tạo biến toàn cục
D. Gán biến trong vòng lặp
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
const với object có thể...?
A. Gán object mới
B. Thay đổi thuộc tính bên trong
C. Gán lại const
D. Xóa object
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
let và const được giới thiệu từ phiên bản nào?
A. ES5
B. ES6
C. ES3
D. ES7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Template literals trong JavaScript được tạo bằng ký tự nào?
A. ' (nháy đơn)
B. " (nháy kép)
C. ` (backtick)
D. \ (backslash)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để chèn biến vào chuỗi template literal, bạn dùng cú pháp nào?
A. {{variable}}
B. @variable
C. ${variable}
D. %variable%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biểu thức nào sau đây là đúng khi dùng template string?
A. `Hello, ${name}`
B. 'Hello, $(name)'
C. "Hello, ${name}"
D. `Hello, #(name)`
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