It is an object of some class whose purpose is to indicate that a real object of that class does not exist. One common use for a null object is a return value from a member function that is supposed to return an object with some specified properties but cannot find such an object.
What is the difference between having a parenthesis after module name and without parenthsis after module name?i.e PackageModule();and PackageModule;
What is the meaning of rigging?
Why do you use only Perl when there a lot of more languages available in market like C, Java?
Why we use "use lib $path"?
Difference between Perl and Mod_perl?
How to make the following assignment, as arrayreference assignment?my $arr_ref=[1,2,3,4,4,elem];
What is caller function in perl?
Write a perl script to find whether a given line of text is starting and ending with same word or not?
Write a Perl script to find a particular word in a paragraph?
Write a script to display mirror image of a entered value and also check whether Palindrome?
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