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marian13/* Why check for emptiness before calling all, any, or none? *.md

Last active September 9, 2024 15:46
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* Why check for emptiness before calling all, any, or none? *.md

Why check for emptiness before calling all?, any?, or none??

numbers.all?(&:even?) numbers.any?(&:even?) numbers.none?(&:even?)
numbers = [0, 1] false true false
numbers = [1] false false true
numbers = [0] true true false
numbers = [] true false false
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