# Flash syntax

**URL:** <https://forum.kirupa.com/t/flash-syntax/302246>\
**Category:** Uncategorized\
**Created:** [December 24, 2009, 6:31am UTC](https://forum.kirupa.com/t/flash-syntax/302246 "2009-12-24T06:31:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![softeye](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@softeye](https://forum.kirupa.com/u/softeye)\
**Post date:** [December 24, 2009, 6:31am UTC](https://forum.kirupa.com/t/flash-syntax/302246/1 "2009-12-24T06:31:10Z")

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hi,

I need help to understand the basic syntax.  
like:  
iXpos = (mouseX \<= lo) ? xhi : xlo;  
and  
(this.trend == 0 ) ? (checkBoundary() ? 0.25 : -0.25) : (this.trend);

**what “?” and “:” stands for**

its kind of tricky to search for specific character syntax?:sigh:

thx,  
Daniel