Ruby: How to find item in array which has the most
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: [1,1,1,2,3].mode =>1 ['cat','dog','snake','dog'].mode =>dog 回答1: Firstbuildahashmappingeachvalueinthearraytoitsf......
Submit POST data from controller to another websit
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: Usersubmitsaformwithsomebasicdata. Thedataisreceivedandtreatedbyanactioninthecontrollerandmoreinformationthatneedsto......
Is it possible to have Methods inside Methods?
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: Ihaveamethodinsideofamethod.Theinteriormethoddependsonavariableloopthatisbeingrun.Isthatabadidea? 回答1: UPDATE:......
What does tilde-greater-than (~>) mean in Ruby gem
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: Meaningoftilde-greater-than(~>)inversionrequirement? ......
Rails: What's a good way to validate links (UR
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: IwaswonderinghowIwouldbestvalidateURLsinRails.Iwasthinkingofusingaregularexpression,butamnotsureifthisisthebestpr......
How do I create an average from a Ruby 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: Howwouldgetfindanaveragefromanarray? IfIhavethearray: [0,4,8,2,5,0,2,6] Averagingwouldgiveme3.375. Thanks! 回答1: Tr......
What exactly is the singleton 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: ItseemsasifI'mmissingthepointormisunderstandingthesignificanceofthesingletonclassinRuby.I'veheardandreadaboutitinman......
How to extract URL parameters from a URL with 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: IhavesomeURLs,like http://www.example.com/something?param1=value1¶m2=value2¶m3=value3 andIwouldliketoextracttheparamete......
What is the difference between Ruby 1.8 and Ruby 1
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'mnotclearonthedifferencesbetweenthe"current"versionofRuby(1.8)andthe"new"version(1.9).Istherean"easy"ora"sim...
Rails sessions current practices
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: Anyonehaveany"bestpractices"tipsforRailsandsessions?ThedefaultsessiontypeforRails3isstillCookieStore,right?IusedSqlSes......
What does @@variable mean 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: WhatareRubyvariablesprecededwithdoubleatsigns(@@)?Myunderstandingofavariableprecededwithanatsignisthatitisaninstance......
Can't install RMagick 2.13.1. Can't find M
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: WhenItrydoinstallrmagickIgetthefollowingerrormessage: Can'tinstallRMagick2.13.1.Can'tfindMagickWand.h. ***extconf.rbfaile......
Checking if a variable is defined?
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: HowcanIcheckwhetheravariableisdefinedinRuby?Isthereanisset-typemethodavailable? 回答1: Usethedefined?keyword(documen......
What are the Ruby File.open modes and options?
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: Ruby'sFile.opentakesmodesandoptionsasarguments.WheredoIfindacompletelistofmodesandoptions? 回答1: InRubyIOmoduledoc......
Rails 4 Authenticity Token
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: IwasworkingonanewRails4app(onRuby2.0.0-p0)whenIranintosomeauthenticitytokenproblems. Whilewritingacontrollerthatresp......
When to use RSpec let()?
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: Itendtousebeforeblockstosetinstancevariables.Ithenusethosevariablesacrossmyexamples.Irecentlycameuponlet().According......
Block definition - difference between braces and d
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: cananybodyexplainwhythefollowingcodeabortswithanerror irb(main):186:0>print((1..10).collectdo|x|x**2end) SyntaxError:(irb):......
Understanding [ClassOne, ClassTwo].each(&:my_metho
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? Iwaswatchingarailscastandsawthiscode. [Category,Product].(&:dele......
What exactly is `&:capitalize` 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: IjustreadthisanswerConvertingupper-casestringintotitle-caseusingRuby. Thereisthefollowinglineofcode "abc".split(/(\W)/).ma......
Ruby ampersand colon shortcut [duplicate]
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? InRuby,IknowthatifIdo: some_objects.each(&:foo) It'sthesameas......
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