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>