Same as it works for anything else. perlop probably describes this well. "||" and "or" both evalute to the left-hand-side (LHS) if it is true, otherwise it evaluates to the right-hand-side (RHS).

Since an empty array is considered "false", the or operator evaluates the RHS and returns its value.

In reply to Re: Using || operator with arrays by Tanktalus
in thread Using || operator with arrays by perl_lover

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