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JavaScript substring() Method

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
JavaScript substring() Method Reviewed by 1000sourcecodes on 20:54 Rating: 5
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