Зміст курсу

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);

Завдання

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

Завдання

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

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Все було зрозуміло?

Секція 3. Розділ 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);

Завдання

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

Завдання

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

Все було зрозуміло?

Секція 3. Розділ 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);

Завдання

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

Завдання

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

Все було зрозуміло?

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);

Завдання

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

Секція 3. Розділ 30