String split()

split() separates the string into an array of substrings based on a separator. The separator may be a string or a RegExp object.

An optional second argument sets the array limit. It ensures that the returned array will be no larger than a certain size.

 
<!DOCTYPE html>
<html>
<head>
    <title>Example</title>
    <script type="text/javascript">
    
        var colorText = "A,B,C,D"; 
        var colors1 = colorText.split(","); //["A", "B", "C", "D"] 
        document.writeln(colors1);
        var colors2 = colorText.split(",", 2); //["A", "B"] 
        document.writeln(colors2);
        var colors3 = colorText.split(/[^\,]+/); //["", ",", ",", ",", ""] 
        document.writeln(colors3);
       
    </script>
</head>
<body>
</body>
</html>

Click to view the demo