JavaScript tutorial:
&= Operator

Description

Used to divide two numbers and return only the remainder.

Syntax

result %= expression

The %= operator syntax has these parts:

Part	Description
result	Any variable.
expression	Any numeric expression.

Example

Using the %= operator is exactly the same as specifying:

result = result % expression

For information on when a run-time error is generated by the %= operator, see the Operator Behavior table.