サンプル
require 'yaml' users = [ {'name' => 'yamada', 'score' => 90}, {'name' => 'sato', 'score' => 30}, ] puts users.to_yaml
出力結果
--- - name: yamada score: 90 - name: sato score: 30
require 'yaml' users = [ {'name' => 'yamada', 'score' => 90}, {'name' => 'sato', 'score' => 30}, ] puts users.to_yaml
--- - name: yamada score: 90 - name: sato score: 30