# Extending vs Subclassing

**URL:** <https://forum.kirupa.com/t/extending-vs-subclassing/312776>\
**Category:** flash\
**Created:** [August 12, 2010, 11:23am UTC](https://forum.kirupa.com/t/extending-vs-subclassing/312776 "2010-08-12T11:23:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![thehat](https://avatars.discourse-cdn.com/v4/letter/t/ea5d25/32.png) [@thehat](https://forum.kirupa.com/u/thehat)\
**Post date:** [August 12, 2010, 11:23am UTC](https://forum.kirupa.com/t/extending-vs-subclassing/312776/1 "2010-08-12T11:23:00Z")

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Can anyone explain the difference between Extending and Subclassing with regards to AS3 classes? I’ve been under the impression that the two terms meant the same thing, but it seems I’m wrong.