Time for the obligatory link to perlsyn. Specifically in the Truth and Falsehood section, you will find:

The number 0, the strings '0' and '' , the empty list () , and undef are all false in a boolean context. All other values are true. Negation of a true value by ! or not returns a special false value. When evaluated as a string it is treated as '' , but as a number, it is treated as 0.


Dave

In reply to Re: Why is this evaluating to true? by davido
in thread Why is this evaluating to true? by pmarcoen

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