Course Content

Introduction to JavaScript (staging)

1. Introduction

2. JavaScript syntax

Null

The data type null represents that there is no value. It is a primitive value in javascript.

To have a better understanding of null, we must know these two features about null:

null provides the non-existent value or empty value.
null has to be assigned to a variable as it is not assigned by default (unlike the undefined).


              12
            
let number = null;
console.log(number);

Task

Declare a variable selectColor and assign the value of null to the variable and display the value of the variable.

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

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 30

The data type null represents that there is no value. It is a primitive value in javascript.

To have a better understanding of null, we must know these two features about null:

null provides the non-existent value or empty value.
null has to be assigned to a variable as it is not assigned by default (unlike the undefined).


              12
            
let number = null;
console.log(number);

Task

Declare a variable selectColor and assign the value of null to the variable and display the value of the variable.

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

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 30

The data type null represents that there is no value. It is a primitive value in javascript.

To have a better understanding of null, we must know these two features about null:

null provides the non-existent value or empty value.
null has to be assigned to a variable as it is not assigned by default (unlike the undefined).


              12
            
let number = null;
console.log(number);

Task

Declare a variable selectColor and assign the value of null to the variable and display the value of the variable.

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

Everything was clear?

Thanks for your feedback!

The data type null represents that there is no value. It is a primitive value in javascript.

To have a better understanding of null, we must know these two features about null:

null provides the non-existent value or empty value.
null has to be assigned to a variable as it is not assigned by default (unlike the undefined).


              12
            
let number = null;
console.log(number);

Task

Declare a variable selectColor and assign the value of null to the variable and display the value of the variable.

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

Section 3. Chapter 30

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