How to know whether a key exists or not in perl?


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More CGI Perl Interview Questions

What is the easiest way to download the contents of a URL with Perl?

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How to turn on Perl warnings? Why is that important?

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Is perl a case sensitive language?

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What are the different string manipulation operators in perl?

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How do I send e-mail from a Perl/CGI program on a Unix system?

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Write a program to concatenate the $firststring and $secondstring and result of these strings should be separated by a single space.

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How does polymorphism work in perl?

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How will you access an element of a perl array?

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We all know private variables exist in perl. But do private METHODS exist in perl ? Eg ?

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Explain lexical variables.

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What is q (single q) operator in perl?

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How can you replace the characters from a string and save the number of replacements?

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