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

Re: Replace In a Single Line

by tobyink (Abbot)
on Jan 17, 2013 at 08:33 UTC ( #1013727=note: print w/replies, xml ) Need Help??

in reply to Replace In a Single Line

In recent versions of Perl, you can do:

$var1 = ($var =~ s/oo//gir);

In pretty much any version of Perl, you can do:

($var1 = $var) =~ s/oo//gi;

Update: the second method is about 35% faster according to my benchmarking. The first one is sometimes more elegant - especially when the variable you're operating on (and don't want to be changed) is $_ such as this map block:

my @without_oo = map { s/oo//rig } @with_oo; # traditional version: my @without_oo = map { (my $x = $_) =~ s/oo//ig; $x } @with_oo;

But in your original example, neither of the two solutions I presented above seems more elegant than the other, so I'd prefer the faster one.

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1013727]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (7)
As of 2018-05-21 11:24 GMT
Find Nodes?
    Voting Booth?