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JavaScript exec() Method
JavaScript RegExp Object
Definition and Usage
The exec() method tests for a match in a string.
This method returns the matched text if it finds a match, otherwise it returns null.
Syntax
RegExpObject.exec(string)
| Parameter | Description |
|---|---|
| string | Required. The string to be searched |
Browser Support
The exec() method is supported in all major browsers.
Example
Example
Do a global search, and test for "Hello" and "W3Schools" in a string:
<script type="text/javascript">
var str="Hello world!";
//look for "Hello"
var patt=/Hello/g;
var result=patt.exec(str);
document.write("Returned value: " + result);
//look for "W3Schools"
patt=/W3Schools/g;
result=patt.exec(str);
document.write("<br />Returned value: " + result);
</script>
var str="Hello world!";
//look for "Hello"
var patt=/Hello/g;
var result=patt.exec(str);
document.write("Returned value: " + result);
//look for "W3Schools"
patt=/W3Schools/g;
result=patt.exec(str);
document.write("<br />Returned value: " + result);
</script>
The output of the code above will be:
Returned value: Hello
Returned value: null
Returned value: null
Try it yourself »
JavaScript RegExp Object
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Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2012 by Refsnes Data. All Rights Reserved.
Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2012 by Refsnes Data. All Rights Reserved.