
Lession 2 - JavaScript
Quiz
•
Computers
•
Professional Development
•
Practice Problem
•
Hard
Ba Nguyễn
Used 2+ times
FREE Resource
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sự khác biệt giữa toán tử == và ===?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của một phép so sánh luôn luôn là?
Giá trị boolean
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Giá trị nào là falsy (được đánh giá là false khi chuyển về kiểu Boolean) ?
0
Infinity
" "
NaN
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Giá trị nào là falsy (được đánh giá là false khi chuyển về kiểu Boolean) ?
null
undefined
true
"null"
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Giá trị nào là falsy (được đánh giá là false khi chuyển về kiểu Boolean) ?
""
"empty"
false
"false"
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của biểu thức Number(null)?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của biểu thức Number(undefined)?
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