# Class question

**URL:** <https://forum.kirupa.com/t/class-question/157540>\
**Category:** flash\
**Created:** [August 2, 2005, 5:28pm UTC](https://forum.kirupa.com/t/class-question/157540 "2005-08-02T17:28:29Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bandinopla](https://avatars.discourse-cdn.com/v4/letter/b/9e8a1a/32.png) [@bandinopla](https://forum.kirupa.com/u/bandinopla)\
**Post date:** [August 2, 2005, 5:28pm UTC](https://forum.kirupa.com/t/class-question/157540/1 "2005-08-02T17:28:29Z")

</div>

Whats the diference between

a=function(){ txt=“hello” }

test=new a()

trace(test.txt)

and this\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*

a=function(){}  
a.prototype.txt=“hello”

test=new a()

trace(test.txt)

??? is not the same?