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given

Perl 5 version 14.2 documentation
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given

Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage
  • given EXPR BLOCK

  • given BLOCK

    given is analogous to the switch keyword in other languages. given and when are used in Perl to implement switch /case like statements. Only available after Perl 5.10. For example:

    1.     use v5.10;
    2.     given ($fruit) {
    3.         when (/apples?/) {
    4.             print "I like apples."
    5.         }
    6.         when (/oranges?/) {
    7.             print "I don't like oranges."
    8.         }
    9.         default {
    10.             print "I don't like anything"
    11.         }
    12.     }

    See Switch statements in perlsyn for detailed information.