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Java Script

substring()


Description

The substring() method extracts the characters from a string, between two specified indices, and returns the new sub string.

This method extracts the characters in a string between "from" and "to", not including "to" itself.

This method has the form:

string.substring(from,to)
Parameter Description
from (required) The index where to start the extraction. First character is at index 0
to (optional) The index where to stop the extraction. If omitted, it extracts the rest of the string

Note: This method does not change the existing strings, it only returns a copy of the joined strings.

Examples

The following example shows the basic use of this method.

<script>
var s = "Hello from JavaScript";
document.write(s.substring(11,15));
</script>

This produces the following result:

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