Re: Idiom for looping thru key/value pairs

It might be easier to work with the data stored as an array of arrays. eg:

my @data = ( [ 'a', 2 ],
             [ 'b', 5 ],
             [ 'b', 2 ],
             [ 'c', 8 ] );

# Keep data sorted on keys.
@data = sort { $a->[0] cmp $b->[0] } @data;

# Get list of values in order
@values = map { $_->[1] } @data;

# Operate on values, in order
{ $_->[1] =* 2 } foreach ( @data );
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Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain

Comment on Re: Idiom for looping thru key/value pairs Download Code

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Re: Re: Idiom for looping thru key/value pairs by petdance (Parson) on May 26, 2001 at 01:09 UTC
I did originally have them as lists of lists, but flattening out into the "array of key/value pairs" idea sped up my constructor by about 10%, which was pretty significant. xoxo, Andy %_=split/;/,".;;n;u;e;ot;t;her;c; ". # Andy Lester 'Perl ;@; a;a;j;m;er;y;t;p;n;d;s;o;'. # http://petdance.com "hack";print map delete$_{$_},split//,q< andy@petdance.com >	[reply]
(tye)Re2: Idiom for looping thru key/value pairs by tye (Sage) on May 26, 2001 at 01:12 UTC
Since you already have an object, I'd really encourage you to consider separating them into two separate parallel lists! - tye (but my friends call me "Tye")	[reply]