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JavaScript substring length

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JavaScript substring length

This page discusses - JavaScript substring length

This page discusses - JavaScript substring length

JavaScript substring length

        

This section illustrates you how to determine the length of substring in JavaScript.

You can see in the given example, we have defined a string and used the JavaScript method substring() in order to extract the substring from  the defined string. Now, we have used the JavaScript property length that allows to retrieve the length of the substring.

Here is the code:

<html>
<h2>Get the length of Substring</h2>
<script type="text/javascript">
var str = "Hello World";
var sub= str.substr(0,4);
document.writeln("The substring is :"+ sub+"<br>");
document.writeln("The length of the substring is :"+ sub.length);
</script> 
</html>

Output will be displayed as:

Download Source Code:

        

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