Division assignment (/=)

The division assignment (/=) operator performs division on the two operands and assigns the result to the left operand.

{{InteractiveExample("JavaScript Demo: Division assignment (/=) operator")}}

```js interactive-example let a = 3;

a /= 2; console.log(a); // Expected output: 1.5

a /= 0; console.log(a); // Expected output: Infinity

a /= "hello"; console.log(a); // Expected output: NaN

## Syntax

```js-nolint
x /= y

Description#

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

Examples#

Division assignment using numbers#

let bar = 5;

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

Other non-BigInt values are coerced to numbers:

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

Division assignment using BigInts#

let foo = 3n;
foo /= 2n; // 1n
foo /= 2n; // 0n

foo /= 0n; // RangeError: BigInt division by zero
foo /= 1; // TypeError: Cannot mix BigInt and other types, use explicit conversions

Specifications#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#

• Assignment operators in the JS guide
• Division (/)