['a', nil, '', 'b'].compact.reject(&:empty?) => ["a", "b"] ['a', nil, '', 'b'].compact.delete_if(&:empty?) => ["a", "b"]
![rubyの配列からnilと空文字を取り除く - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/d6fdbe47bbbe6b5048a5362fce8e193a94613237/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-9f5428127621718a910c8b63951390ad.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTkxNiZoPTMzNiZ0eHQ9cnVieSVFMyU4MSVBRSVFOSU4NSU4RCVFNSU4OCU5NyVFMyU4MSU4QiVFMyU4MiU4OW5pbCVFMyU4MSVBOCVFNyVBOSVCQSVFNiU5NiU4NyVFNSVBRCU5NyVFMyU4MiU5MiVFNSU4RiU5NiVFMyU4MiU4QSVFOSU5OSVBNCVFMyU4MSU4RiZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTU2JnR4dC1jbGlwPWVsbGlwc2lzJnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9MTg4OGNmZGY2YjIyZmI1NjQ1NmM2ZGEwZTk1ZjU1MDQ%26mark-x%3D142%26mark-y%3D112%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTYxNiZ0eHQ9JTQwdGExa3QwbWUlNDBnaXRodWImdHh0LWNvbG9yPSUyMzIxMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPWQwNTVhYTBkOGI4NWI5Yjc0NjlhMGMxNjUzZmRkZDcy%26blend-x%3D142%26blend-y%3D491%26blend-mode%3Dnormal%26s%3Dbe6fe8ce0df43e366aa8ea576f9b3df2)
1回だけ brew install direnv echo 'eval "$(direnv hook zsh)"' >> ~/.zshrc echo 'Spring.watch_method = :listen' >> ~/.spring.rb # web-consoleと組み合わせると落ちる。設定項目が増えたら変えるかも アプリごと rbenv local #{version} cat <<EOF >> Gemfile group :development do gem 'spring' gem 'listen' gem 'web-console' end EOF bundle --path vendor/bundle rbenv rehash bundle exec spring binstub --all echo 'export PATH=$PWD/bin:$PATH' > .en
ざっくり手順だけ。 brew install postgresql initdb /usr/local/var/postgres-395 -E utf8 psql -l postgres -D /usr/local/var/postgres-395 createdb Kajaeru_development createuser -P testuser psql -q -c 'select * from pg_user' postgres Register as a new user and use Qiita more conveniently You get articles that match your needsYou can efficiently read back useful informationYou can use dark themeWhat you can do
chocolateyでpython(3.3.3)をインストール ** cinst python3 => C:\Python33 => コマンドプロンプトでpythonコマンド実行 環境変数追加 PYTHONPATH=C:\Python33\Lib\site-packages Register as a new user and use Qiita more conveniently You get articles that match your needsYou can efficiently read back useful informationYou can use dark themeWhat you can do with signing up
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