Javascript SubStr() Function

The substr() function of string object returns a substring beginning at the specified location and length. Use it for example to get sub string start from specified location and length.

Syntax

str.substr(start [, length ])

Javascript SubStr() Function Example1

<DOCTYPE html>
<html> 
<head> <!-- www.techstrikers.com -->
<script type="text/javascript">
var str1 = "Learn javascript in a simple way.";
//Starting from index 0 to 15
document.write(str1.substr(0,16) + "</br>");
</script>
</head>
<body>
</body>
</html>

See Live Example

Javascript SubStr() Function Example2

<DOCTYPE html>
<html> 
<head> <!-- www.techstrikers.com -->
<script type="text/javascript">
var str1 = "Learn javascript in a simple way.";
//Starting from index 15 to end
document.write(str1.substr(17) + "</br>");
</script>
</head>
<body>
</body>
</html>

See Live Example

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