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Javascript String - substring() Method


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Description:

This method returns a subset of a String object.

Syntax:

string.substring(indexA, [indexB])

Here is the detail of parameters:

  • indexA : An integer between 0 and one less than the length of the string.

  • indexB : (optional) An integer between 0 and the length of the string.

Return Value:

  • The substring method returns the new sub string based on given parameters.

Example:

<html>
<head>
<title>JavaScript String substring() Method</title>
</head>
<body>
<script type="text/javascript">

var str = "Apples are round, and apples are juicy.";

document.write("(1,2): "    + str.substring(1,2));
document.write("<br />(0,10): "   + str.substring(0, 10));
document.write("<br />(5): "      + str.substring(5));
</script>
</body>
</html>

This will produce following result:

(1,2): p
(0,10): Apples are
(5): s are round, and apples are juicy. 

To understand it in better way you can Try it yourself.



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