# Identifying custom classes

**URL:** https://forum.kirupa.com/t/identifying-custom-classes/119383
**Category:** Uncategorized
**Created:** [August 14, 2004, 4:28am UTC](https://forum.kirupa.com/t/identifying-custom-classes/119383 "2004-08-14T04:28:03Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![daheroes](https://avatars.discourse-cdn.com/v4/letter/d/4af34b/32.png) [@daheroes](https://forum.kirupa.com/u/daheroes)
#### Post date: [August 14, 2004, 4:28am UTC](https://forum.kirupa.com/t/identifying-custom-classes/119383/1 "2004-08-14T04:28:03Z")

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Hello all.

What would be the best way to have a class instance be able to identify others of its class? Or figure out the class of any object?

All help is greatly appreciated.

-Brekk

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### Author: ![rysolag](https://avatars.discourse-cdn.com/v4/letter/r/ba8739/32.png) [@rysolag](https://forum.kirupa.com/u/rysolag)
#### Post date: [August 14, 2004, 5:13am UTC](https://forum.kirupa.com/t/identifying-custom-classes/119383/2 "2004-08-14T05:13:17Z")

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use **instanceof**

ex.  
[AS]  
var myXML:XML = new XML();

if(myXML instanceof XML)  
trace(“match”);  
[/AS]

it outputs ‘match’

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### Author: ![daheroes](https://avatars.discourse-cdn.com/v4/letter/d/4af34b/32.png) [@daheroes](https://forum.kirupa.com/u/daheroes)
#### Post date: [August 16, 2004, 7:24pm UTC](https://forum.kirupa.com/t/identifying-custom-classes/119383/3 "2004-08-16T19:24:08Z")

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excellent. must have overlooked that. thanks!