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[Rails]DRYに書きたい(可読性、保守性)

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[Rails]似たようなコードを1つにまとめたい(パーシャル)
https://railstutorial.jp/chapters/filling_in_the_layout?version=5.1#sec-partials

[Rails]DRYなコードを書きたいが、一部分が違う場合
https://railstutorial.jp/chapters/updating_and_deleting_users?version=5.1#sec-edit_form

[Rails]タイトルの可変要素をDRYする
https://railstutorial.jp/chapters/static_pages?version=5.1#sec-layouts_and_embedded_ruby
https://qiita.com/shumpeism/items/a0ad5930fa3bc0d24c70

[Rails]汎用性があるので異なるControllerでも定義したメソッドを使いたい
継承→application_controller.rb
https://railstutorial.jp/chapters/user_microposts?version=5.1#sec-micropost_access_control

[Rails]記法一覧
https://qiita.com/gakkie/items/3afcd505c786364aa5fa
https://blog.mothule.com/ruby/ruby-percent-syntax

[Ruby]記法一覧
https://railstutorial.jp/chapters/rails_flavored_ruby?version=5.1#cha-rails_flavored_ruby

[Rails]キーワード引数とオプション引数の違い
https://railstutorial.jp/chapters/updating_and_deleting_users?version=5.1#sec-users_index

Railsが暗黙的にやってくれること一覧
Railsは慣習に従って、アクションに対応するビューを暗黙的に呼び出します。例えば、showアクションの最後でshow.html.erbを呼び出す、といった具合です。

その他
[Rails]rails sがバックグラウンドにあり、ctrl+cで消せない場合
https://qiita.com/kanuu/items/fd6e33fca6ad6a90d059

[Rails]ユニーク制約とは?どんなメリットがある?

[Rails]シンボルを使うタイミング
https://uxmilk.jp/25934

[Rails]attr_accessor とは?
http://bryankawa.hatenablog.com/entry/2017/01/28/150537

非同期で通信がしたい→Ajax,JS
https://railstutorial.jp/chapters/following_users?version=5.1#sec-a_working_follow_button_with_ajax

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