JavaScript substring() Method

Definition and Usage The substring() method extracts the characters in a string between two specified indices. Syntax stringObject.s...

Definition and Usage

The substring() method extracts the characters in a string between two specified indices.

Syntax

stringObject.substring(start,stop)

Parameter Description
start Required. Where to start the extraction. Must be a numeric value
stop Optional. Where to stop the extraction. Must be a numeric value


Tips and Notes

Note: The start index starts at 0.
Note: If the stop parameter is omitted, this method extracts to the end of the string.

Example

In this example we will use substring() to extract some characters from a string:

<script type="text/javascript">
var str="Hello world!";
document.write(str.substring(3));
</script>

The output of the code above will be:

lo world!


Example

In this example we will use substring() to extract some characters from a string:

<script type="text/javascript">
var str="Hello world!";
document.write(str.substring(3,7));
</script>

The output of the code above will be:

lo w
Name

ADO,131,ASP,3,C++,61,CORE JAVA,1,CSS,115,HTML,297,index,5,JAVASCRIPT,210,OS,47,PHP,65,SAD,53,SERVLETS,23,SOFTWARE ENGINEERING,245,SQL,71,TCP/IP,1,XHTML,9,XML,18,
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JavaScript substring() Method
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