How to implement an abstract class in ruby?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Iknowthereisnoconceptofabstractclassinruby.Butifatallitneedstobeimplemented,howtogoaboutit?Itriedsomethinglike.........
Rails has_many :through Find by Extra Attributes i
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: NewtobothRubyandRailsbutI'mbookeducatedbynow(whichapparentlymeansnothing,haha). I'vegottwomodels,EventandUserjoinedt......
When to use symbols instead of strings in Ruby?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ifthereareatleasttwoinstancesofthesamestringinmyscript,shouldIinsteaduseasymbol? 回答1: TL;DR Asimpleruleofthumb......
How to solve error “Missing `secret_key_base` for
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'vecreatedarailsapp(rails4.1)fromscratchandIamfacingastrangeproblemthatIamnotabletosolve. EverytimeItrytodeploy......
ruby inheritance vs mixins
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: InRuby,sinceyoucanincludemultiplemixinsbutonlyextendoneclass,itseemslikemixinswouldbepreferredoverinheritance. Myquest......
Ruby function to remove all white spaces?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: WhatistheRubyfunctiontoremoveallwhitespace?Kindoflikephp'strim()? 回答1: Ifyouwanttoremoveonlyleadingandtrailingwh......
Hidden features of Ruby
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Continuingthe"Hiddenfeaturesof..."meme,let'ssharethelesser-knownbutusefulfeaturesofRubyprogramminglanguage. Trytolimitth......
Reducing n+1 queries using the Bullet and RSpec ge
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: WhatisaneffectivewaytousetheBulletGemwithRSpec?RightnowIfeelifIuseitwithmycurrentunittestframeworkIgetalotofno......
What is this &:last Ruby construct called? [duplic
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: PossibleDuplicate: Whatdoesmap(&:name)meaninRuby? Whatarethingslikesurvey.map(&:questions).flatten.compactcalled,soI......
Why is `a = a` `nil` in Ruby?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Iwatchedthisvideo.Whyisa=aevaluatedtonilifaisnotdefined? a=a#=>nil b=c=q=c#=>nil 回答1: Rubyinterpreter......
'pass parameter by reference' in Ruby?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: InRuby,isitpossibletopassbyreferenceaparameterwithvalue-typesemantics(e.g.aFixnum)? I'mlookingforsomethingsimilartoC#'s......
Avoiding AppleScript through Ruby: rb-appscript or
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: HellofellowMacrubyistsandAppleScripthaters, Forthoseofyouthathaveexperiencewithbothrubyosaandrb-appscript,I'dlikethehea......
Ruby: Inherit code that works with class variables
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Thesituation:Ihavemultipleclassesthatshouldeachholdavariablewithaconfigurationhash;adifferenthashforeachclassbutthesa......
'require': cannot load such file — 'no
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'mrunningacleaninstallofRuby2.2.1onWindows8.1withDevKit.AftertheinstallationIrun: geminstallrails railsnewtestapp cdt......
How do I copy a hash in Ruby?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'lladmitthatI'mabitofarubynewbie(writingrakescripts,now).Inmostlanguages,copyconstructorsareeasytofind.Halfanhouro......
diff a ruby string or array
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: HowdoIdoadiffoftwostringsorarraysinRuby? 回答1: diff.rbiswhatyouwant,whichisavailableathttp://users.cybercity.dk/~ds......
Test if string is a number in Ruby on Rails
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ihavethefollowinginmyapplicationcontroller: defis_number?(object) trueifFloat(object)rescuefalse end andthefollowingcondi......
How to split (chunk) a Ruby array into parts of X
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Thisquestionalreadyhasananswerhere: HowtochunkanarrayinRuby 2......
Ruby MYSQL2 gem installation on windows 7
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'mtryingtoinstallingthemysql2gemonwindows7Idownloadedtheconnectorfromthemysqlsiteandplacedthelibmysql.dllinruby200\bi......
Executing code for every method call in a Ruby mod
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'mwritingamoduleinRuby1.9.2thatdefinesseveralmethods.Whenanyofthesemethodsiscalled,Iwanteachofthemtoexecuteacertai......
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