It performs a Boolean OR operation on each bit of its integer arguments.
Example
You can try to run the following code to learn how to work with Bitwise OR Operator (|) −
<html> <body> <script> var a = 2; // Bit presentation 10 var b = 3; // Bit presentation 11 document.write("(a | b) => "); result = (a | b); document.write(result); </script> </body> </html>