大约有 47,000 项符合查询结果(耗时:0.0650秒) [XML]

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Check if a method exists

... answered Apr 28 '10 at 20:26 kennytmkennytm 451k9292 gold badges980980 silver badges958958 bronze badges ...
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Apache Spark: map vs mapPartitions?

... so. – Nicholas White Jan 18 '14 at 10:52 If you look at the source -- github.com/apache/incubator-spark/blob/… and ...
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break out of if and foreach

... answered Mar 10 '16 at 23:32 serraosaysserraosays 4,80911 gold badge2626 silver badges4545 bronze badges ...
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Check if value is in select list with JQuery

... | edited Feb 12 '10 at 1:16 answered Feb 12 '10 at 1:08 ...
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Fastest Way to Serve a File Using PHP

... answered Sep 16 '10 at 23:29 Julien RoncagliaJulien Roncaglia 16k33 gold badges5555 silver badges7373 bronze badges ...
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check if directory exists and delete in one command unix

... Dominic MitchellDominic Mitchell 10.3k44 gold badges2626 silver badges2929 bronze badges ...
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How to make a great R reproducible example

...used for making factors. A few examples : random values : x <- rnorm(10) for normal distribution, x <- runif(10) for uniform distribution, ... a permutation of some values : x <- sample(1:10) for vector 1:10 in random order. a random factor : x <- sample(letters[1:4], 20, replace = TR...
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How to install a specific version of a ruby gem?

... answered Jun 10 '13 at 14:37 mjsmjs 54.3k2424 gold badges7979 silver badges111111 bronze badges ...
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if arguments is equal to this string, define a variable like this string

...e has changed. – unsynchronized Jun 10 '16 at 8:46  |  show ...
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Why not use Double or Float to represent currency?

... 1028 Because floats and doubles cannot accurately represent the base 10 multiples that we use for ...