Hi, everyone, I want to ensure a best method to test whether a module has loaded. if not I will load it with require;

I see some people use such method : 

   my $module = "MyModule::ABC";
   eval " require $module " unless $module->can('isa');

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which use can('isa') to test . but this may not working in new version of Perl ? which will true even the $module haven't loaded;

in some situation when Module is a OO module ,which has a new method generally. we can use : 

   $module->can('new')

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to test .

is there a universal method for any module , to test loaded or not ?

very thanks your wisdom :)

In reply to module loaded test by chinaxing

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