大约有 5,100 项符合查询结果(耗时:0.0264秒) [XML]

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Why doesn't Java Map extend Collection?

...ars in the bag). This structure would allow intersection, union etc. of a range of "collections". Hence, the hierarchy should be: Set | Relation | ...
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Simple proof that GUID is not unique [closed]

...ingless. GUID generation algorithms don't generate values over the entire range with equal probability. In fact IIRC the original algorithm used the MAC address of the generating PC + the current time as part of the result - which reduces the risk of collision with Guids generated on other PCs, bu...
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What's a correct and good way to implement __hash__()?

... is typically faster than Python level code. – ShadowRanger Nov 4 '19 at 23:18 ...
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Merge a Branch into Trunk

... The syntax is wrong, it should instead be svn merge <what(the range)> <from(your dev branch)> <to(trunk/trunk local copy)> share | improve this answer | ...
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Code coverage with Mocha

...rt inside ./coverage/index.html. Report formats Istanbul supports a wide range of report formats. Just look at its reports library to find the most useful for you. Just add a --reporter=REPORTER_NAME option for each format you want. For example, with nyc --reporter=html --reporter=text you will...
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Python progression path - From apprentice to guru

... comprehensions Discover generators Incorporate map, reduce, filter, iter, range, xrange often into your code Discover Decorators Write recursive functions, a lot Discover itertools and functools Read Real World Haskell (read free online) Rewrite all your old Python code with tons of higher order fu...
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How persistent is localStorage?

... be cleared via "Tools -> Clear Recent History -> Cookies" when Time range is "Everything" (via nsICookieManager::removeAll) https://developer.mozilla.org/en/DOM/Storage In DOM Storage it is not possible to specify an expiration period for any of your data. All expiration rules are left up to ...
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What scalability problems have you encountered using a NoSQL data store? [closed]

... structure this could be quite a few tables, e.g. joining a product to its range of flavours, which other products are contained, etc Name=An Example Product Type=CategoryAProduct Colour=Blue Size=Large Flavours={nice,lovely,unpleasant,foul} Contains=[ Name=Product2 Type=CategoryBProduct Size=mediu...
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When should I choose Vector in Scala?

...Seq documentation.) For an IndexedSeq you would normally choose a Vector. Ranges and WrappedStrings are also IndexedSeqs. For a LinearSeq you would normally choose a List or its lazy equivalent Stream. Other examples are Queues and Stacks. So in Java terms, ArrayList used similarly to Scala's Vec...
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PHP Regex to check date is in YYYY-MM-DD format

...fail validation: 2015-02-29 2015-04-31 1900-02-29 1999-01-32 2015-02-00 Range: We'll test for dates from 1st Jan 1000 to 31st Dec 2999. Technically the currently used Gregorian calendar only came into use in 1753 for the British Empire and at various years in the 1600s for countries in Europe, ...