# Tutorial: Extending Built-in Objects in JavaScript

**URL:** <https://forum.kirupa.com/t/tutorial-extending-built-in-objects-in-javascript/332220>\
**Category:** web dev\
**Created:** [March 10, 2014, 3:13am UTC](https://forum.kirupa.com/t/tutorial-extending-built-in-objects-in-javascript/332220 "2014-03-10T03:13:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kirupa](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/kirupa/32/11616_2.png) [@kirupa](https://forum.kirupa.com/u/kirupa)\
**Post date:** [March 10, 2014, 3:13am UTC](https://forum.kirupa.com/t/tutorial-extending-built-in-objects-in-javascript/332220/1 "2014-03-10T03:13:54Z")

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The tutorial is here: [http://www.kirupa.com/html5/extending\_built\_in\_objects\_javascript.htm](http://www.kirupa.com/html5/extending_built_in_objects_javascript.htm)

The thread to discuss this is here…sort of. You can also comment in the tutorial. Choice is good.

Cheers,  
Kirupa :smirk2: