# Bitwise XOR Assignment Operator (^=) (JavaScript)

Performs a bitwise exclusive OR on a variable and an expression and assigns the result to the variable.

## Syntax

```
result ^= expression
```

## Parameters

*result*

Any variable.

*expression*

Any expression.

## Remarks

Using the **^=** operator is exactly the same as specifying:

```
result = result ^ expression
```

The **^=** operator looks at the binary representation of the values of two expressions and does a bitwise exclusive OR operation on them. The result of this operation behaves as follows:

```
0101 (result)
1100 (expression)
----
1001 (result)
```

When one, and only one, of the expressions has a 1 in a digit, the result has a 1 in that digit. Otherwise, the result has a 0 in that digit.

## Requirements

Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1). See Version Information.

## See Also

Bitwise XOR Operator (^)

Operator Precedence

Operator Summary (JavaScript)