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收录了14053篇文章 ·14922个问题 · 0人关注
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How do I limit the number of replacements when usi

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: HowdoyoulimitthenumberofreplacementsmadebyString#gsubinRuby? InPHPthiscanbeeasydonewithpreg_replace......

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Ruby/Rails - Access a “lookup” table without model

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: ThisisforaRubyonRails3.0.xproject. Ihavea"lookup"tablewithdatafromavendor. WhenIimportdatafromano......

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The Authlogic record method. What does this do

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: IcameacrossthismethodcalledrecordthatRyanbatesusesinhisauthlogicRailscastandcan'tseemtounderstandwhat......

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Show tooltip of a column chart programmatically in

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'veaHighstockchart(Linewithmarkersandshadow)andwouldliketoshowahighstocktooltipprogrammatically,i.e.w......

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Recursive nested matching pairs of curly braces in

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: Ihavethefollowingstring: The{quick}brownfox{jumps{over{deep}the}{sfsdf0}lazy}dog{sdfsdf1{sdfsdf2} And......

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How do I use domain objects from middleware with c

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: Intherailsdevelopmentenvironment,cache_classesisoffsoyoucanmodifycodeunderapp/andseechangeswithoutrest......

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Error installing gems: cannot load such file — zli

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'mtryingtoinstallbundlergemonMacOSYosmite ~/code/hellogeminstallbundler ERROR:Loadingcommand:install(L......

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Ruby : How can I detect/intelligently guess the de

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: Ineedtobeabletofigureoutwhichdelimiterisbeingusedinacsvfile(comma,spaceorsemicolon)inmyRubyprojec......

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Ruby - How to use different fonts in Prawn?

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: IhaveasmallRubyprogramwhereI'mprintingsometextouttoaPDFusingPrawn,butasmallportionofthetextisnon......

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Cannot install gem - make is not recognized as an

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: Iwantedtoinstalltherspec-railsgemwithruby1.9.3onwindows7.Igotsomeerrorssayingthatsomejsonlibrariesc......

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Catching Invalid JSON Parse Errors with Rack Middl

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: IamusingRails5andIamtryingtoimproveerrorhandlingforinvalidJSONrequeststomyAPI. Itriedhandlinginval......

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Understanding precedence of assignment and logical

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: Ican'tunderstandprecedenceofRubyoperatorsinafollowingexample: x=1&&y=2 Since&&hashigherprecedence......

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Serializing an object to JSON, XML, YAML?

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: Iaskedapreviousquestionaboutserializationandvalidation.SomeonementionedusingtheJSONgemwhichallowsmetot......

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Difference between ActiveRecord and ActiveRecord::

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: IhavesearchedbutnotabletofindthebriefexplanationforthedifferencebetweenActiveRecordandActiveRecord::rela......

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Passing params to CanCan in RoR

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: Ihaveacontrollerwithamethodlike; defshow ifparams[:format].eql?("pdf") //dosomething elsifparam......

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How to downgrade my rails version?

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: Iamusingrailsversion4.2.0.HowcanIdowngradetoversion3.2.19? Itriedthefollowing: Iopenedcommandprompt......

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Get unicode by hex string in Ruby [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: Thisquestionalread...

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'bundle exec' complains about gem not bein

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: IhaveawebsiteusingJekyllwithGithubPages.AfterpreviouslymessingaboutwithversionsandRVMonanothercompute......

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Does SAVON support client side certificates authen

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'mevaluatingsavonforconsumingwebservices...butIdontfindanyinformationifIcanuseaSSLclientsidecertific......

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Turning constructor arguments into instance variab

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: Thisquestionalread...