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はじめに

移植やってます

for (Python)

for item in (1, 10, 2):
    if item is not None:
        break
print(item)

見た瞬間、itemって未定義?と思いましたが、ちゃんと数値を返します。

for (Ruby)

for item in [1, 10, 2]
  break if !!item
end
puts item

item = [3, 10, 2].find{ !!_1 }
puts item

Rubyはそんなことないだろうと思っていましたが、ちゃんと数値を返します。
普段、forって使用しませんので思い込みでした。

メモ

  • Python の for を学習した
  • 道のりは遠そう
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