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Ruby | How to invert true and false

2019/04/16に公開

2023/08/29

set true to false

 !(true) # => false

 !(false) # => true

Useful when you want to return the opposite result. For example, if you decide not to be a woman but a man.

Redundant.

 class Person def is_man? if is_woman return false else return true end end end

I can write more concisely.

 class Person def is_man? !(is_woman?) end end

何か質問、悩み事、相談などあればLINEオープンチャットもご利用ください。

2019-04-16