#環境
・ruby 2.7
・rails 5.1.6
##配列結合
ary = ["a","b","c"]
p ary.join
=> "abc" #配列の中にある要素を全て結合
##結合されている配列を一文字区切りにする
p ary.join(",")
More than 3 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