Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change

Re^2: hash_reference from file

by jwkrahn (Monsignor)
on Sep 29, 2011 at 11:33 UTC ( #928528=note: print w/ replies, xml ) Need Help??

in reply to Re: hash_reference from file
in thread hash_reference from file

while (<DATA>) { my @line = split; my %hash; @hash{+KEYS} = @line; push @array, {%hash}; }

Why create a hash in the lexical scope of the while loop and then make a copy of that hash instead of just using a reference to that lexically scoped hash?

while (<DATA>) { my %hash; @hash{ +KEYS } = split; push @array, \%hash; }

Comment on Re^2: hash_reference from file
Select or Download Code
Replies are listed 'Best First'.
Re^3: hash_reference from file
by choroba (Canon) on Sep 29, 2011 at 13:22 UTC
    You are absolutely right. I was typing too fast :)

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://928528]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others lurking in the Monastery: (4)
As of 2015-11-28 20:52 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (744 votes), past polls