8 lines
360 B
Text
8 lines
360 B
Text
Moose classes (and some other classes) distinguish between an attribute being
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unset and the attribute being set to undef.
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To ensure that the Person constructor does not try to set a name or age at all
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when they are undefined, ugly looking code is often used. A slightly more
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elegant solution is the maybe function.
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WWW: https://metacpan.org/pod/PerlX::Maybe
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