Division assignment (/=)

BaselineWidely available

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

Thedivision assignment (/=) operator performsdivision on the two operands and assigns the result to the left operand.

Try it

let a = 3;a /= 2;console.log(a);// Expected output: 1.5a /= 0;console.log(a);// Expected output: Infinitya /= "hello";console.log(a);// Expected output: NaN

Syntax

x /= y

Description

x /= y is equivalent tox = x / y, except that the expressionx is only evaluated once.

Examples

Division assignment using numbers

let bar = 5;bar /= 2; // 2.5bar /= 2; // 1.25bar /= 0; // Infinity

Other non-BigInt values are coerced to numbers:

let bar = 5;bar /= "2"; // 2.5bar /= "foo"; // NaN

Division assignment using BigInts

let foo = 3n;foo /= 2n; // 1nfoo /= 2n; // 0nfoo /= 0n; // RangeError: BigInt division by zerofoo /= 1; // TypeError: Cannot mix BigInt and other types, use explicit conversions