JavaScript Tutorial – Assignment Operators

What is JavaScript Assignment Operators?

Assignment operators assign values to JavaScript variables. Here are the five most common assignments in JavaScript:

Operator	Example	Same As
=	x = y	x = y
+=	x += y	x = x + y
-=	x -= y	x = x – y
*=	x *= y	x = x * y
/=	x /= y	x = x / y

= Operator

The = assignment operator assigns a value to a variable.

Assignment Operator

		
			let x = 5;

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+= Operator

The += addition operator adds a value to a variable.

Addition Operator

		
			let x = 5;
x += 5;

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-= Operator

The -= subtraction operator subtracts a value to a variable.

Subtraction Operator

		
			let x = 5;
x -= 1;

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*= Operator

The *= multiplication operator multiples a value to a variable.

Multiplication Operator

		
			let x = 5;
x *= 2;

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/= Operator

The /= division operator divides a value to a variable.

Division Operator

		
			let x = 5;
x /= 2;

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There are many more assignment operators in JavaScript, but we will not go over them in this tutorial. You will learn more about them at the later chapers.