<[EMAIL PROTECTED]>, Bo Peng <[EMAIL PROTECTED]> wrote:
> I have around 10 of them. Using these if/else, it will take 50 lines for
> a function call. It also bothers me to have 10 variables left in the
> namespace, in addition to finding 10 meaningful names.
If you've got 10 different conditional branches in a single function,
that's pretty messy logic no matter what language you write it in or what
syntactic sugar you've got to let you write it compactly. Can you give us
some idea of what it is that you're trying to do? It pretty unusual to see
a requirement like that.
> The FAQ provides two solutions, neither of them are elegant. I guess I
> will use if/else for reasability purpose.
I agree that the and/or hack is ugly, and I generally stay away from it
because I think if/else is easier to read and understand. But if you've
got 10 of them, the compactness (and, as you say, avoiding having to create
10 temp variables) of the and/or probably means the hack is worth doing.
Somthing like:
myComplicatedFunction (cond1 and value1a or value1b,
cond2 and value2a or value2b,
cond3 and value3a or value3b,
cond4 and value4a or value4b,
cond5 and value5a or value5b,
cond6 and value6a or value6b,
cond7 and value7a or value7b,
cond8 and value8a or value8b,
cond9 and value9a or value9b,
cond10 and value10a or value10b)
is kind of ugly, but at least you only have to understand what's going on
with the and/or ONCE, and then you can apply that understanding to the 10
repetitions of the construct. Having 50 lines of if/else makes it much
harder to get your head around what's going on.
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