html-template-users

Re: [htmltmpl] One-liner to convert array-of-hashes to an array

[Philip S T. <phi...@gm...>]

On Tue, 16 Jul 2002, Stefan Svensson wrote:

> Sorry for bothering you with a simple, off-topic question to which I can't 
> find any answer elsewhere.
> 
> Can someone provide a simple one-liner to convert a array-of-hashes to an
> array of values for a specified hash key?


Please note the change in list address.

This might work:

my @lov = map {$_->{$key}} @hash_array;

Re: [htmltmpl] One-liner to convert array-of-hashes to an array

[Roger B. W. <ro...@fi...>]

On or about Tue, Jul 16, 2002 at 03:16:28PM +0530, Philip S Tellis typed:

>This might work:
>
>my @lov = map {$_->{$key}} @hash_array;

Not quite - this will insert undefs in the list if the key doesn't exist
in all hashes. See my version which checks for this.

Cheers,

Roger