Assignment Operators in JavaScript

An assignment operator requires two operands. The value of the right operand is assigned to the left operand. The sign = denotes the simple assignment operator. JavaScript also has several compound assignment operators, which is actually shorthand for other operators. A list of all such operators are listed below.

Table of Contents

List of Assignment operators
Simple Assignement Operator
Compound Assignment Operators
Reference

List of Assignment operators

Name	Syntax	Meaning
Assignment	x = y	x = y
Addition assignment	x += y	x =x+ y
Subtraction assignment	x -= y	x = x - y
Multiplication assignment	x *= y	x = x * y
Division assignment	x /= y	x = x / y
Remainder assignment	x %= y	x = x % y
Exponentiation assignment	x **= y	x = x ** y
Left shift assignment	x <<= y	x = x << y
Right shift assignment	x >>= y	x = x >> y
Unsigned right shift assignment	x >>>= y	x = x >>> y
Bitwise AND assignment	x &= y	x = x & y
Bitwise XOR assignment	x ^= y	x = x ^ y
Bitwise OR assignment	x \|= y	x = x \| y
Logical AND assignment	x &&= y	x && (x = y)
Logical OR assignment	x \|\|= y	x \|\| (x = y)
Logical nullish assignment	x ??= y	x ?? (x = y)

Simple Assignement Operator

An = assignment operator assigns the value of the right-hand operand to the left-hand variable.

var x = 25;

var y = 25*100;

var z = x+y;

Compound Assignment Operators

All operators except = listed in the table above are compound assignment operators. They are actually shorthand notations

For Examples

The Addition assignment += operator adds a value to a variable.

var x = 25;

x +=25; //50;

is actually shorthand for

var x= 25;

x = x + 25; //50

Reference

Read More

Bitwise Operator

Nullish Coalescing Operator

List of Assignment operators

Simple Assignement Operator

Compound Assignment Operators

Reference

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