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Are +0 and -0 the same?

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: ReadingthroughtheECMAScript5.1specification,+0and-0aredistinguished. Whythendoes+0===-0evaluatetotrue? 回答1: JavaScriptusesIEEE754standardtorepr...

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What’s the best way to reload / refresh an iframe?

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: Iwouldliketoreloadan<iframe>usingJavaScript.ThebestwayIfounduntilnowwassettheiframe’ssrcattributetoitself,butthisisn’tveryclean.Anyideas? 回...

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When should I use double instead of decimal?

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: Icannamethreeadvantagestousingdouble(orfloat)insteadofdecimal: Useslessmemory. Fasterbecausefloatingpointmathoperationsarenativelysupportedbypr...

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What's the CMake syntax to set and use variabl

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\'maskingthisasaremindertomyselfthenexttimeIuseCMake.Itneversticks,andGoogleresultsaren\'tgreat. What\'sthesyntaxtosetandusevariablesinCMake? 回...

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Emulate ggplot2 default color palette

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: WhatfunctioncanIusetoemulateggplot2\'sdefaultcolorpaletteforadesirednumberofcolors.Forexample,aninputof3wouldproduceacharactervectorofHEXcolorswi...

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