# The Concept of Programming Languages

**URL:** <https://forum.kirupa.com/t/the-concept-of-programming-languages/281208>\
**Category:** flash\
**Created:** [February 6, 2009, 1:12am UTC](https://forum.kirupa.com/t/the-concept-of-programming-languages/281208 "2009-02-06T01:12:33Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![smallDot](https://avatars.discourse-cdn.com/v4/letter/s/a8b319/32.png) [@smallDot](https://forum.kirupa.com/u/smallDot)\
**Post date:** [February 6, 2009, 1:12am UTC](https://forum.kirupa.com/t/the-concept-of-programming-languages/281208/1 "2009-02-06T01:12:33Z")

</div>

Hi, i 2 days :stare: ago, i was trying to understand this code, i am not a programmer, but try to learn AS3.  
every time i wrote this code without the tutorial a make mistakes, and every time i try to understand the logic or the way this code was built i feel i am frustrated.  
i was thinking if there is good book for people like me (designer want to learn programming) to guide us, not in AS3 but the concept of programming languages.

another point:  
how do learn, i want to share your way learning AS3.

when i see many many lines of code i feel i am poor writing only \*\*[COLOR=Blue]MouseEvent  
[/COLOR]\*\*but at the same time, i feel it is better than nothing

* * *

This code has no mistakes, but what i want to understand, why the programmer put the **[COLOR=Blue]if[/COLOR]** statement in another function, i mean how do you know you must put that in that function.

guys, i feel so frustrated, please help us to learn this fancy language

```
ActionScript Code:
[LEFT]top_mc.[COLOR=#000080]addEventListener[/COLOR][COLOR=#000000]([/COLOR]MouseEvent.[COLOR=#000080]CLICK[/COLOR], targetMc[COLOR=#000000])[/COLOR];

```

bottom\_mc.[COLOR=#000080]addEventListener[/COLOR][COLOR=#000000]([/COLOR]MouseEvent.[COLOR=#000080]CLICK[/COLOR], targetMc[COLOR=#000000])[/COLOR];  
arrow\_mc.[COLOR=#000080]addEventListener[/COLOR][COLOR=#000000]([/COLOR]MouseEvent.[COLOR=#000080]CLICK[/COLOR], arrowMe[COLOR=#000000])[/COLOR];

[COLOR=#000000] **function** [/COLOR] targetMcCOLOR=#000000[/COLOR]:[COLOR=#0000FF]void[/COLOR] [COLOR=#000000]{[/COLOR]  
arrow\_mc.[COLOR=#000080]aim[/COLOR] = evt.[COLOR=#0000FF]target[/COLOR];  
[COLOR=#000000]}[/COLOR]

[COLOR=#000000] **function** [/COLOR] arrowMeCOLOR=#000000[/COLOR]:[COLOR=#0000FF]void[/COLOR] [COLOR=#000000]{[/COLOR]  
[COLOR=#0000FF]if[/COLOR] COLOR=#000000[/COLOR] [COLOR=#000000]{[/COLOR]  
arrow\_mc.[COLOR=#000080]x[/COLOR] = arrow\_mc.[COLOR=#000080]aim[/COLOR].[COLOR=#000080]x[/COLOR];  
arrow\_mc.[COLOR=#000080]y[/COLOR] = arrow\_mc.[COLOR=#000080]aim[/COLOR].[COLOR=#000080]y[/COLOR];  
[COLOR=#000000]}[/COLOR]  
[COLOR=#000000]}[/COLOR]  
[/LEFT]

Thanks for your time