One thing that's worth mentioning is that while this: 
if($foo == 7) {
    print "foo is 7\n";
} else {
    print "foo is not 7\n";
}

[download]
is acceptable, this: 
unless($foo != 7) {
    print "foo is 7\n";
} else {
    print "foo is not 7\n";
}

[download]
is not. Sure, perl will accept it (I consider this to be a bug in perl), and it'll run, but anyone writing it should be beaten savagely. It's VERY hard to read.

In reply to Re: if variants by DrHyde
in thread if variants by apotheon

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