# How to count instance of a class?

**URL:** https://forum.kirupa.com/t/how-to-count-instance-of-a-class/188059
**Category:** flash
**Created:** [May 4, 2006, 7:13am UTC](https://forum.kirupa.com/t/how-to-count-instance-of-a-class/188059 "2006-05-04T07:13:05Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![ven](https://avatars.discourse-cdn.com/v4/letter/v/f9ae1b/32.png) [@ven](https://forum.kirupa.com/u/ven)
#### Post date: [May 4, 2006, 7:13am UTC](https://forum.kirupa.com/t/how-to-count-instance-of-a-class/188059/1 "2006-05-04T07:13:05Z")

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How would i write it in my class, so that i get id incremented by every time its made.

Dont know how to write it in AS 2 :o

i.e:

```auto

a = new A();
b = new A();
trace(a.id);
trace(b.id);
// would give: 1 2 

```