Bitwise OR Operator (|) (JavaScript)

1 minutes to read Contributors
  • Mike Jones
  • Saisang Cai

Performs a bitwise OR on two expressions.

Syntax


result = expression1 | expression2

Parameters

result
Any variable.

expression1
Any expression.

expression2
Any expression.

Remarks

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

0101   (expression1)  
1100   (expression2)  
----  
1101   (result)

Any time either of the expressions has a 1 in a digit, the result will have a 1 in that digit. Otherwise, the result will have 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 OR Assignment Operator (|=)
Operator Precedence
Operator Summary (JavaScript)