Comments on: Try to read this code

By: Nad

Nad — Sun, 25 Mar 2007 10:49:44 +0000

some correction
if (isNan(btb)){
if (controlBar==true && !isNaN(btt)) {
crap=btt;
} else {
if (isNaN(btl)) crap=bt; else crap=btl;
}
} else crap=btb;
vm.bottom = o.bottom + crap

By: Nad

Nad — Sun, 25 Mar 2007 10:44:19 +0000

if (isNan(btb)){
if (controlBar==true && !isNaN(btt)) crap=btt; else {
if (isNaN(btl)) crap=bt; else crap=btl;
}
} else crap=btb;
} else crap=btb;
vm.bottom = o.bottom + crap

By: Ternaries, ||, and cleaner clode... « Aaron King’s Flex Blog

Thu, 22 Mar 2007 23:06:20 +0000

[...] March 22nd, 2007 In my first post, I mentioned a post over on Doug McCune’s Blog that finally tipped me over the edge to start blogging. So, here’s it is… [...]

By: Hello world! « Aaron King’s Flex Blog

Hello world! « Aaron King’s Flex Blog — Thu, 22 Mar 2007 21:42:02 +0000

[...] Hello world! Hello World! Okay, Okay, Okay. So I was reading a post on Doug McCune’s blog this morning, and I started a reply. Well, the reply started getting so long and drawn out that I finally said to myself, “Ya know, this really should be a blog post all to itself.” And thus tipped the scales… I finally did what I’ve been thinking about for ages and started a blog. [...]

By: Doug

Doug — Thu, 22 Mar 2007 16:21:05 +0000

Sorry to everyone who was trying to post formatted code in the comments and got the indenting all messed up. The secret was using the

 AND the  tags nested together.
I went ahead and edited people’s comments to try to get the formatting how I think it was supposed to be. Hopefully I didn’t mis-format anyone’s code.



By: chuck
chuck — Thu, 22 Mar 2007 16:12:33 +0000
Since Wordpress has a problem with formatting code in comments, I posted my revised indentation of the offending line at my site — it’s the trackback above from “nothing happens.”



By: gabriel montagné
gabriel montagné — Thu, 22 Mar 2007 14:50:00 +0000
with a minimal cleanup, the initial code could actually be very clear to read:


vm.bottom = o.bottom + (     

            !isNaN(btb)                 ? btb
        :   controlBar && !isNaN(btt)   ? btt
        :   isNaN(btl)                  ? bt
        :   btl
        ;
);




By: gabriel montagné
gabriel montagné — Thu, 22 Mar 2007 14:29:22 +0000
Well, ternaries can actually clear up the production of some values, making it clear the conditions for each particular value, as well as a default value at the end.  If properly indented, the can be way clearer than a long set of ifs and elses.

var something  = conditionA  ? valueA
               : conditionB  ? valueB
               : conditionC  ? valueC
               : conditionD  ? valueD
               : default
               ;


It is likely that the layout won't come out OK(tm) in this comment, but a clear way of indenting this is to line the : with the = assignment operator, and all the ? in the same column.. that way the default value will stand out at the end (and leaving it out will cause a syntax error!)


By: nothing happens
nothing happens — Thu, 22 Mar 2007 14:13:48 +0000
[...] [due to]  computing, Flash/ActionScript programming [...]



By: chuck
chuck — Thu, 22 Mar 2007 12:53:56 +0000
I like the ternary operator, but I’ve over-used it on occasion.  I think the thing I liked about it was that I had really liked the Scheme/Lisp I was exposed to in school, and in Lisp the “if” statement is actually pretty much just like the ternary operator.  So I got kind of used to it.
I think the readability can be helped with some indenting… let’s see if I can get Wordpress to do this:

vm.bottom = o.bottom +
   (isNaN(btb) ?
      (controlBar && !isNaN(btt) ?
         btt :
         isNaN(btl) ? bt : btl) :
      btb);

Now if we could just do something about those awful variable names.