Bitwise XOR assignment (^=)

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The bitwise XOR assignment (^=) operator performs bitwise XOR on the two operands and assigns the result to the left operand.

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Syntax

js
x ^= y

Description

x ^= y is equivalent to x = x ^ y, except that the expression x is only evaluated once.

Examples

Using bitwise XOR assignment

js
let a = 5; // (00000000000000000000000000000101)
a ^= 3; // (00000000000000000000000000000011)

console.log(a); // 6 (00000000000000000000000000000110)

let b = 5; // (00000000000000000000000000000101)
b ^= 0; // (00000000000000000000000000000000)

console.log(b); // 5 (00000000000000000000000000000101)

let c = 5n;
c ^= 3n;
console.log(c); // 6n

Specifications

Specification
ECMAScript Language Specification
# sec-assignment-operators

Browser compatibility

BCD tables only load in the browser

See also