can´t call method xyz on an undefined value at...
Good Morning, I, once again, have a question. How can I check if a Method is undefined or not without getting this error? -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/ http://learn.perl.org/first-response
RE: can´t call method xyz on an undefined value at...
Bastian Angerstein [EMAIL PROTECTED] wrote: : How can I check if a Method is undefined or not without : getting this error? Assuming you mean the method to an object. Use the UNIVERSAL method 'can'. use CGI; my $q = CGI-new(); print method 'xyz' invalid for '\$q'\n unless $q-can( 'xyz' ); print method 'xyz' valid for '\$q'\n; __END__ use CGI ('xyz'); my $q = CGI-new(); print method 'xyz' invalid for '\$q'\n unless $q-can( 'xyz' ); print method 'xyz' valid for '\$q'\n; __END__ HTH, Charles K. Clarkson -- Mobile Homes Specialist 254 968-8328 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/ http://learn.perl.org/first-response
can´t call method xyz on an undefined value at...
Now I gate can´t call methode can on an undefined value xyz line xyz. Any Idea? -Ursprüngliche Nachricht- Von: Charles K. Clarkson [mailto:[EMAIL PROTECTED] Gesendet: Freitag, 3. September 2004 10:37 An: 'Bastian Angerstein'; 'Mailinglist Perl Beginners' Betreff: RE: can´t call method xyz on an undefined value at... Bastian Angerstein [EMAIL PROTECTED] wrote: : How can I check if a Method is undefined or not without : getting this error? Assuming you mean the method to an object. Use the UNIVERSAL method 'can'. use CGI; my $q = CGI-new(); print method 'xyz' invalid for '\$q'\n unless $q-can( 'xyz' ); print method 'xyz' valid for '\$q'\n; __END__ use CGI ('xyz'); my $q = CGI-new(); print method 'xyz' invalid for '\$q'\n unless $q-can( 'xyz' ); print method 'xyz' valid for '\$q'\n; __END__ HTH, Charles K. Clarkson -- Mobile Homes Specialist 254 968-8328 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/ http://learn.perl.org/first-response
RE: can´t call method xyz on an undefined value at...
Bastian Angerstein [EMAIL PROTECTED] wrote: : Now I gate can´t call methode can on an undefined : value xyz line xyz. Any Idea? Show us your code. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/ http://learn.perl.org/first-response