Bitwise XOR Assignment Operator (^=) (JavaScript)

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


result ^= expression  


Any variable.

Any expression.


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.


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)