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JavaScript Basics - Foundations data types and conditionals

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JavaScript Basics - Foundations data types and conditionals

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Foundations data types and conditionals

Created by

Minh Nhat Pham
Minh Nhat Pham
Viet Nam

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JavaScript Basics - Foundations data types and conditionals
 

JavaScript Basics - Foundations data types and conditionalsOnline version

Foundations data types and conditionals

by Minh Nhat Pham
1

Which of these is a string?

2

Which data type is used for whole numbers?

3

typeof "dog" returns:

4

typeof false returns:

5

Which of these is NOT a JavaScript data type?

6

typeof null gives:

7

What does typeof undefined return?

8

What is the result of "5" + 3?

9

What is the result of 5 + "3"?

10

What is the result of 10 / "2"?

11

What keyword starts a conditional statement?

12

What keyword provides an alternative branch?

13

if (5 > 3) { console.log("yes"); } prints:

14

if (2 > 5) { console.log("hi"); } else { console.log("bye"); } prints:

15

Which is the correct syntax?

16

true && false evaluates to:

17

true || false evaluates to:

18

!true evaluates to:

19

!false evaluates to:

20

If x = 10, what does x > 5 return?

21

2 + 3 * 2 equals:

22

10 % 3 equals:

23

What does === check?

24

5 == "5" is:

25

5 === "5" is:

26

Which operator means 'not equal'?

27

if ("apple" === "apple") is:

28

Which of these will make the condition true if x = 3?

29

What will if (0) do?

30

What will if ("") do?

 
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