Help for this page

Select Code to Download


  1. or download this
        if(  ref($obj)  &&  UNIVERSAL::isa($obj,'Class')  ) {
        $obj->invoke_method();
    }
  2. or download this
        if(  ref($obj)  &&  UNIVERSAL::isa($obj,'UNIVERSAL')  ) {
  3. or download this
        if(  ref($obj)  &&  UNIVERSAL::can($obj,'can')  ) {
# or
    if(  ref($obj)  &&  UNIVERSAL::can($obj,'isa')  ) {
  4. or download this
        use UNIVERSAL qw( isa can );