# \[AS3\] How to set optional parameters in a custom class

**URL:** <https://forum.kirupa.com/t/as3-how-to-set-optional-parameters-in-a-custom-class/217245>\
**Category:** flash\
**Created:** [February 24, 2007, 7:37pm UTC](https://forum.kirupa.com/t/as3-how-to-set-optional-parameters-in-a-custom-class/217245 "2007-02-24T19:37:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Knorcedger](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/knorcedger/32/1244_2.png) [@Knorcedger](https://forum.kirupa.com/u/Knorcedger)\
**Post date:** [February 24, 2007, 7:37pm UTC](https://forum.kirupa.com/t/as3-how-to-set-optional-parameters-in-a-custom-class/217245/1 "2007-02-24T19:37:12Z")

</div>

Im coding in AS3, and i want to make a class that will recieve optional parameters, but i dont know how to identify these parameters as optional.

I tried writing

```auto
public function mydate([language:String]):void{

```

like Adobe identifies optional parameters, but it doesnt work

Any help will be appreciated 🙂