ある値 num が配列 ary1 に含まれているとき，配列 ary2 に含まれているとき，それ以外のときで処理を分岐させたいときは，配列の前に '*' を前置して配列を展開することで実現できる．
num = 4
ary1 = [1, 2, 3]
ary2 = [4, 5, 6]
case num
when *ary1
puts 1
when *ary2
puts 2
else
puts 3
end
# >> 2
More than 5 years have passed since last update.
Register as a new user and use Qiita more conveniently
- You get articles that match your needs
- You can efficiently read back useful information
- You can use dark theme