Bitwise OR assignment (|=)

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

Try it

Syntax

js

x |= y

Description

x |= y is equivalent to x = x | y.

Examples

Using bitwise OR assignment

js

let a = 5;
a |= 2; // 7
// 5: 00000000000000000000000000000101
// 2: 00000000000000000000000000000010
// -----------------------------------
// 7: 00000000000000000000000000000111

let b = 5n;
b |= 2n; // 7n

Specifications

Specification
ECMAScript Language Specification
# sec-assignment-operators

Browser compatibility

BCD tables only load in the browser

See also