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Boolean 2/4 | Data Types and Variables
Introduction to JavaScript (staging)
course content

Course Content

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction
2. JavaScript syntax
3. Data Types and Variables

bookBoolean 2/4

Boolean Data Type

We use the typeof operator to check the data type of variables, for example.

1234
let isRaining = true; console.log(typeof isRaining); // or like this console.log(typeof(isRaining));
copy

As you can see in the above code we declared a variable named isRaining with the value of true, and its data type is boolean as expected.

Task

Declare a variable with the name isSunRises and set its value as true. Then check the type of isSunRises by using typeof() and display the output.

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Section 3. Chapter 16
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bookBoolean 2/4

Boolean Data Type

We use the typeof operator to check the data type of variables, for example.

1234
let isRaining = true; console.log(typeof isRaining); // or like this console.log(typeof(isRaining));
copy

As you can see in the above code we declared a variable named isRaining with the value of true, and its data type is boolean as expected.

Task

Declare a variable with the name isSunRises and set its value as true. Then check the type of isSunRises by using typeof() and display the output.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 3. Chapter 16
toggle bottom row

bookBoolean 2/4

Boolean Data Type

We use the typeof operator to check the data type of variables, for example.

1234
let isRaining = true; console.log(typeof isRaining); // or like this console.log(typeof(isRaining));
copy

As you can see in the above code we declared a variable named isRaining with the value of true, and its data type is boolean as expected.

Task

Declare a variable with the name isSunRises and set its value as true. Then check the type of isSunRises by using typeof() and display the output.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Boolean Data Type

We use the typeof operator to check the data type of variables, for example.

1234
let isRaining = true; console.log(typeof isRaining); // or like this console.log(typeof(isRaining));
copy

As you can see in the above code we declared a variable named isRaining with the value of true, and its data type is boolean as expected.

Task

Declare a variable with the name isSunRises and set its value as true. Then check the type of isSunRises by using typeof() and display the output.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 3. Chapter 16
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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