大约有 43,100 项符合查询结果（耗时：0.0513秒） [XML]
Multi-line commands in GHCi
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187
Most of the time, you can rely on type inference to work out a signature for you. In your exam...
How to initialize all members of an array to the same value?
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1276
Unless that value is 0 (in which case you can omit some part of the initializer
and the corre...
See what process is using a file in Mac OS X
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edited Aug 10 '19 at 16:03
agillgilla
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Scala 2.8 breakOut
...e the best builder possible. For example, if I were to write Map('a' -> 1).map(_.swap), I'd like to get a Map(1 -> 'a') back. On the other hand, a Map('a' -> 1).map(_._1) can't return a Map (it returns an Iterable).
The magic of producing the best possible Builder from the known types of t...
sed: print only matching group
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140
Match the whole line, so add a .* at the beginning of your regex. This causes the entire line ...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
...ulates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular implementation?
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I change the capitalization of a directory and Git doesn't seem to pick up on it
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11 Answers
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Active
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Find the extension of a filename in Ruby
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167
That's really basic stuff:
irb(main):002:0> accepted_formats = [".txt", ".pdf"]
=> [".t...