> > Is there a better way to simplify the syntax when testing for multiple
> > conditions?
>
> Your original code is the proper way to do it. All the other solutions
> proffered are inferior, IMO.
Use 'or' and 'and' to remove clutter, they have different precedance and
are often useful in this context. E.g.
if ($string eq "First" or $string eq "Second" or $string eq "Third") {
...
}
> The suggestion of:
>
> if($something =~ /^(string0|string1|string2)$/)
>
> is not equivalent to your original condition. It's also likely to be
> inefficient.
I get 1 min 15.983sec for "normal" three condition if, and 52.305sse for a regex
approach. My
test code is:
my $type = shift;
my $iterate = 1000000;
my $item = "lock";
if ($type eq "normal") {
for (0..$iterate) {
print " " if $item =~ /^(?:apple|banana|lock)$/;
}
}
elsif ($type eq "regex") {
for (0..$iterate) {
print " " if $item eq "apple" or $item eq "banana" or $item eq "lock";
}
}
__END__
If in doubt, benchmark. It can produce non-intutive results! Guess I should have
bothered to use
Benchmark.pm The regex approach is common, and is often much clearer... being read as:
"print something if item matches apple or banana or lock"
Jonthan Paton
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