We would like to know how to remove all dots except the first one from a string.
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
<!--from w w w. java2 s . c om-->
var input = '1.2.3.4';
var output = input.split('.');
output = output.shift() + '.' + output.join('');
document.writeln(output);
</script>
</head>
<body>
</body>
</html>
The code above is rendered as follows: