Remainder 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 remainder assignment (%=) operator performs remainder 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 remainder assignment
js
let bar = 5;
bar %= 2; // 1
bar %= "foo"; // NaN
bar %= 0; // NaN
let foo = 3n;
foo %= 2n; // 1n
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-assignment-operators |
Browser compatibility
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