Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid

Re^2: The 'eval "require $module; 1"' idiom

by tobyink (Abbot)
on Apr 20, 2014 at 02:20 UTC ( #1082929=note: print w/ replies, xml ) Need Help??

in reply to Re: The 'eval "require $module; 1"' idiom
in thread The 'eval "require $module; 1"' idiom

Even in that case, I still wouldn't add ";1" to the evaluated string. In your example, use warnings would be complaining about concatenating an undefined value. Instead I'd probably go with

my $MODULE_WAS_LOADED = !! eval "require ''";

Or perhaps even:

my $MODULE_WAS_LOADED = 0+!! eval "require ''";

(which might look nicer in the debugging output).

use Moops; class Cow :rw { has name => (default => 'Ermintrude') }; say Cow->new->name

Comment on Re^2: The 'eval "require $module; 1"' idiom
Select or Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1082929]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (5)
As of 2015-11-26 07:22 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 (696 votes), past polls