bitwise or assignment
Summary
Performs a bitwise OR on the value of a variable and the value of an expression and assigns the result to the variable.
Syntax
result |= expression
- result
- Any variable.
- expression
- Any expression.
Examples
See Remarks.
var x = 5;
x |= 12;
// result: x = 13
Remarks
Using this operator is exactly the same as specifying:
result = result | expression
The |= operator looks at the binary representation of the values of result and expression and does a bitwise OR operation on them. The result of this operation behaves like this:
0101 (result)
1100 (expression)
----
1101 (output)
Any time either 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.
See also
Other articles
Attributions
Microsoft Developer Network: Article