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Boolean 1/4 | 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

Boolean 1/4

What are Booleans Values

The boolean data type is either true or false. In programming, we often need to know if an expression (code snippet which evaluates to some value) is true or false so in that case, we use boolean values. In JavaScript, boolean variables are defined by the true and false keywords.

12
let isClear = true; console.log(isClear);
copy

Task

Declare a variable isEarthFlat and assign the value false to it. Display the value on the console.

Task

Declare a variable isEarthFlat and assign the value false to it. Display the value on the console.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 3. Chapter 15
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Boolean 1/4

What are Booleans Values

The boolean data type is either true or false. In programming, we often need to know if an expression (code snippet which evaluates to some value) is true or false so in that case, we use boolean values. In JavaScript, boolean variables are defined by the true and false keywords.

12
let isClear = true; console.log(isClear);
copy

Task

Declare a variable isEarthFlat and assign the value false to it. Display the value on the console.

Task

Declare a variable isEarthFlat and assign the value false to it. Display the value on the console.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Section 3. Chapter 15
toggle bottom row

Boolean 1/4

What are Booleans Values

The boolean data type is either true or false. In programming, we often need to know if an expression (code snippet which evaluates to some value) is true or false so in that case, we use boolean values. In JavaScript, boolean variables are defined by the true and false keywords.

12
let isClear = true; console.log(isClear);
copy

Task

Declare a variable isEarthFlat and assign the value false to it. Display the value on the console.

Task

Declare a variable isEarthFlat and assign the value false to it. Display the value on the console.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

What are Booleans Values

The boolean data type is either true or false. In programming, we often need to know if an expression (code snippet which evaluates to some value) is true or false so in that case, we use boolean values. In JavaScript, boolean variables are defined by the true and false keywords.

12
let isClear = true; console.log(isClear);
copy

Task

Declare a variable isEarthFlat and assign the value false to it. Display the value on the console.

Switch to desktop for real-world practiceContinue from where you are using one of the options below
Section 3. Chapter 15
Switch to desktop for real-world practiceContinue from where you are using one of the options below
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