JavaScript Assignment operators

Assignment operators assign values to JavaScript variables.

Operator	Actual Expression	Description
a = b	a = b	Assigns the value of b to a.
a += b	a = a + b	Assigns the result of a plus b to a.
a -= b	a = a – b	Assigns the result of a minus b to a.
a *= b	a = a * b	Assigns the result of a times b to a.
a /= b	a = a / b	Assigns the result of a divided by b to a.
a %= b	a = a % b	Assigns the result of a modulo b to a.
a &=b	a = a & b	Assigns the result of a AND b to a.
a \|=b	a =a \| b	Assigns the result of a OR b to a.
a ^=b	a = a ^ b	Assigns the result of a XOR b to a.
a <<= b	a = a << b	Assigns the result of a shifted left by b to a.
a >>= b	a = a >> b	Assigns the result of a shifted right (sign preserved) by b to a.
a >>>= b	a = a >>> b	Assigns the result of a shifted right by b to a.

Table of Contents

let x = 10;
console.log(x = x);

let x = 10;
    y = 2;
let result = x += y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x -= y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x *= y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x /= y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x %= y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x & y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x | y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x ^= y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x <<= y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x >>= y;
console.log('result is ' + result);

let x = 10;
    y = 2;
let result = x >>>= y;
console.log('result is ' + result);