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Bitwise XOR assignment (^=)

The ^= 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

Desktop Mobile Server
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android Deno Node.js
Bitwise_XOR_assignment 1 12 1 3 1 18 4 10.1 1 1.0 4.4 1.0 0.10.0

See also

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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_XOR_assignment