iteye_18611的博客

1. NEWtar = [1,2,3,4,5]arr = Array.new(4000){|i| 1+i }# better spell:arr = (1..4000).to_a# use taptar = [].tap {|i| (1..3).to_a.each{|e| i << e}} 2.1 take# Returns first elem...

 Devise 登陆验证的代码 https://github.com/plataformatec/devise/blob/v2.0.2/lib/devise/models/database_authenticatable.rb#L37 salt = self.encrypted_password[0..28] https://github.com/codahale/bcr...

简要姿势点1.Controller::Action 写respond_to do |format|format.jsformat.htmlformat.xlsendRails会对应去render controller_name/action_name.js.erbcontroller_name/action_name.html.erbcontroller...