JavaScript substr() Method
JavaScript String Object
Definition and Usage
The substr() method extracts the characters from a string, beginning at
"start" and through the specified number of character,
and returns the new sub string.
Syntax
| string.substr(start,length) |
| Parameter |
Description |
| start |
Required. The index where to start the extraction. First character is at
index 0 |
| length |
Optional. The number of characters to extract. If omitted, it extracts the
rest of the string |
Browser Support

The substr() method is supported in all major browsers.
Tips and Notes
Tip: To extract characters from the end of the string, use a negative start number (This does not work in IE).
Example
Example
Extract characters from a string:
<script type="text/javascript">
var str="Hello world!"; document.write(str.substr(3)+"<br />");
document.write(str.substr(3,4));
</script>
|
The output of the code above will be:
Try it yourself »
|
JavaScript String Object
Stylus Studio® 2010 XML Enterprise Suite raises the bar for productivity in XML development tools.
Millions of XML developers and data integration specialists turn to Stylus Studio's comprehensive and intuitive
XML toolset to tackle today's advanced XML data transformation and aggregation challenges.
|
- XML Pipeline Editor, Debugger and Code Generator
- DataDirect XML Converters
- XQuery Mapper, Editor, Debugger, and Profiler
- XSLT Mapper, Editor, Debugger, Designer, and Profiler
- Java and C# for .Net Code Generation
- XML Schema Designer With Documentation Generator
- XML Editor With Full XPath Integration
Download a free trial now
|
|