How to add elements in a hash in perl?
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How and what are closures implemented in perl?
Explain the difference between my and local?
How to sort arrays in perl?
What is the function of virtual documents in cgi programs?
What is it meants by '$_'?
What is qq (double q)operator in perl?
If EXPR is an arbitrary expression, what is the difference between $Foo::{EXPR} and *{"Foo::".EXPR}?
What is perl pop array function?
What is warn function in perl?
Explain gmtime() function in perl?
What is the use of '>>' in perl?
Explain cpan?