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[Rails] 分辨 cookie and session

在技術面試上
常常被問到的問題之一，要你區分 Cookie 和 Session ?
一般只知道
Cookie 就是存在客戶端(Client)
Session 存在服務器端

每次發起 Http 請求時，客户端都會發送相應的 cookie 信息到服務端。
它的过期时间可以任意设置，如果你不主动清除它，大部分會一直保留著
即便你關閉了電腦

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PostgreSQL apache2 api array async auto aws beautify-ruby benchmark bloomfilter bot branch bucket bug build build_stubbed centos chrome class collection command commit compass cookie count css databases db domain enum error es5 es6 eth exists extend factorybot factorygirl feeling figaro fixed font-size git godaddy hangzhou heroku hexo index install instance ios javascript jquery json lazy-loading learn lendbot lending length linode linux load-more logdown mariadb material-design meetup member migration modal mysql mysql@5.7 notify package-install pakogi performance poloniex pq preventDefault problm psql rails rake redis remote resource rollback routes rspec rss ruby ruby-on-rails s3 sass sass-convert screen scroll scss seo session setting share shell-script size spec speed stash stopPropagation string sublime symbol telegram test ubuntu url utf utf8mb4 version visual-studio wallet wget wordpress wpf xml youtube

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