Re: Changing a returned hashref

The problem is this piece of code:

sub two{
  $_[0]->{HASH} = {1 => 'one'};
}
[download]

It doesn't modify the hash that $_[0]{HASH} points to, but rather stores a new reference in there. Modifying the existing hash works:

sub two{
  $_[0]->{HASH}{1} = 'one';
}
[download]

Comment on Re: Changing a returned hashref Select or Download Code

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Re^2: Changing a returned hashref by cqd (Initiate) on Nov 09, 2011 at 10:14 UTC
Wow! Thanks for the fast reply! It works like a charm! I changed the password while being logged in so the question was unfortunately assigned to an anonymous monk, hehe.	[reply]
Re^2: Changing a returned hashref by cqd (Initiate) on Nov 09, 2011 at 12:23 UTC
Just to clarify for myself, I experimented a little and found that this clarified things a bit for me: `${$self->{HASH}}{1} = 'one';` [download]	[reply] [d/l]
Re^3: Changing a returned hashref by Anonymous Monk on Nov 09, 2011 at 12:28 UTC
Then you'll like References quick reference	[reply]
Re^4: Changing a returned hashref by cqd (Initiate) on Nov 09, 2011 at 13:48 UTC
Thanks! What I found a bit confusing was how perl see the above hashref as a reference to another hashref instead of a reference to a hash with 2 keys...	[reply]
Re^5: Changing a returned hashref by aaron_baugher (Curate) on Nov 09, 2011 at 14:25 UTC