Re: How do I push new data into an existing hash?

in reply to How do I push new data into an existing hash?

I want to add something to an existing key of a hash. $hash{key}=$val; will replace the content of key with a new content $val but will not add $val to the already existing content of key. If I try to use push to add the new value to the exisiting content then perl will give an error message : Type of arg 1 to push must be array (not hash elem.

Comment on Re: How do I push new data into an existing hash?

Replies are listed 'Best First'.
Re: Answer: How do I push new data into an existing hash? by arturo (Vicar) on Apr 19, 2001 at 19:23 UTC
Try `$hash{$key} .= $val;` if $hash{$key} is a (string) scalar, or `push @{$hash{$key}}, $val` if `$hash{$key}` is an array reference. See `perldoc perlref` and `perldoc perlreftut` for more on how to play with references.	[reply] [d/l] [select]

In Section Seekers of Perl Wisdom