Re: the if statement

This looks like homework, so here are some hints.

(keys %hash) is a list of the keys for %hash. The scalar assignment $input = (keys %hash) puts the number of keys into $input (which is probably not what you want to do). ~~OTOH, to compare $input to each of the keys, you need to loop through the keys, comparing $input to each key. Since the keys (and the user input) are strings, you use eq to do the comparison.~~

Updated: Scrub the stupidity; no need to check everything; this is a hash, after all.

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Re^2: the if statement by eyepopslikeamosquito (Archbishop) on Sep 28, 2008 at 02:27 UTC
you need to loop through the keys, comparing $input to each key Doing linear scans over an associative array is like trying to club someone to death with a loaded Uzi. :-) -- Larry Wall in Authoritative list of Larry Wall quotes See also Clubbing someone to death with a loaded Uzi blog by Dominus.	[reply]
Re^2: the if statement by FunkyMonk (Chancellor) on Sep 27, 2008 at 22:50 UTC
you need to loop through the keys, comparing $input to each key That's what exists is for. In this case `if ($hash{$input}) { ... }` is probably good enough.	[reply] [d/l]

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