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


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More CGI Perl Interview Questions

Explain the difference between die and exit in perl?

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What is an interpolation in perl?

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What do the symbols $ @ and % mean when prefixing a variable?

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What's the difference between /^Foo/s and /^Foo/?

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How to do comment in perl?

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What are the logical operators used for small scale operations?

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Explain perl. When do you use perl for programming?

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What is posix in perl?

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What is the importance of perl warnings?

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How do find the length of an array?

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I have created a CGI-based page,after entering all the values in to the fields, How to get the output on the web browser using Perl

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What is 'rollback' command in perl?

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