YouTipJsref Regexp Constructor
# JavaScript RegExp constructor Property
[ JavaScript RegExp Object](#)
## Example
Return the constructor function of the regular expression prototype:
var patt = new RegExp("TUTORIAL", "g"); var res = patt.constructor;
[Try it yourself »](#)
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## Definition and Usage
In JavaScript, the constructor property returns the constructor function of an object.
The return value is a reference to the function, not the function name:
JavaScript **RegExp** constructor property returns **function RegExp() { }**
JavaScript Array constructor property returns **function Array() { }**
JavaScript Number constructor property returns **function Number() { }**
JavaScript String constructor property returns **function String() { }**
If a variable is an array, you can use the constructor property to define it.
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## Browser Support
The numbers in the table indicate the first browser version that supports the property.
| Property | | | | | |
| --- | --- | --- | --- | --- | --- |
| constructor | Yes | Yes | Yes | Yes | Yes |
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## Syntax
RegExpObject.constructor
## Parameters
No parameters.
## Technical Details
Return value: function RegExp() { }
JavaScript version: ECMAScript 1
* * JavaScript RegExp Object](#)