Unsigned Right Shift

The unsigned right shift operator is >>>. It shifts all bits in a number to the right. For positive numbers, the effect is the same as a signed right shift.

 
<!DOCTYPE html>
<html>
<head>
    <title>Example</title>
    <script type="text/javascript">
        var oldValue = 64; //equal to binary 1000000 
        var newValue = oldValue >>> 5; //equal to binary 10 which is decimal 2 
        document.writeln(newValue);//2
    </script>
</head>
<body>
</body>
</html>

Click to view the demo

For negative numbers unsigned-right-shift operator considers the binary representation of the negative number to be representative of a positive number.

 
<!DOCTYPE html>
<html>
<head>
    <title>Example</title>
    <script type="text/javascript">
    
        var oldValue = -64; //
        var newValue = oldValue >>> 5; //
        document.writeln(newValue);//134217726

       
    </script>
</head>
<body>
</body>
</html>

Click to view the demo