Henning Thielemann wrote:
>I try to stay away from list comprehension because I can't memorize in >which order the conditions are processed [...]
I remember it as being slowest-changing-to-the-left, just like the positional notation for integers. E.g.
[[x,y] | x <- ['1'..'4'], y <- ['0'..'9']]
will give you the numbers from 10 to 49 in order (as strings).
Another way to remember is that it's the same order as its equivalent using the list monad:
do { x <- ['1'..'4']; y <- ['0'..'9']; return [x,y] }-- Ben
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