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


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More CGI Perl Interview Questions

What are the different types of perl operators?

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How do you set environment variables in perl?

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What can be done for efficient parameter passing in perl? Explain.

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How to access parameters passed to a subroutine in perl?

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How to add elements in a hash in perl?

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What is qq (double q)operator in perl?

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How do you you check the return code of a command in perl?

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What is hash?

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What is the closure in PERL?

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Explain perl.

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What is v-strings?

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What are the different string manipulation operators in perl?

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