Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Re^3: wantarray alternative (choice)

by tye (Sage)
on Jul 13, 2013 at 01:24 UTC ( [id://1044107]=note: print w/replies, xml ) Need Help??


in reply to Re^2: wantarray alternative (helper)
in thread wantarray alternative

Because that function is trivial to write and it isn't the only or even the obviously right choice.

sub first_or_all { wantarray ? @_ : $_[0] } sub last_or_all { wantarray ? @_ : $_[-1] } sub list_or_aref { wantarray ? @_ : \@_ } sub aref_or_list { wantarray ? @{$_[0]} : $_[0] } sub pairs_or_href { wantarray ? @_ : {@_} } sub href_or_pairs { wantarray ? %{$_[0]} : $_[0] } sub all_or_concat { wantarray ? @_ : join $,, @_ } sub all_or_die { return @_ if wantarray; return $_[0] if @_ <= 1; require Carp; local $Carp::level = 2; my $sub = ( caller(1) )[3]; Carp::croak( "Don't call $sub() like that in a scalar context" ); }

(to list just a few off the top of my head that I've heard people argue are wise choices)

- tye        

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://1044107]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others chanting in the Monastery: (5)
As of 2024-03-19 08:34 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found