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:
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:
