大约有 47,000 项符合查询结果(耗时:0.0523秒) [XML]

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How efficient can Meteor be while sharing a huge collection among many clients?

...iption provides; the Mongo driver, which watches the database for changes; and the merge box, which combines all of a client's active subscriptions and sends them out over the network to the client. Publish functions Each time a Meteor client subscribes to a collection, the server runs a publish f...
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Data structure: insert, remove, contains, get random element, all at O(1)

... Consider a data structure composed of a hashtable H and an array A. The hashtable keys are the elements in the data structure, and the values are their positions in the array. insert(value): append the value to array and let i be its index in A. Set H[value]=i. remove(value)...
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ImportError: numpy.core.multiarray failed to import

... I was getting the same error and was able to solve it by updating my numpy installation to 1.8.0: pip install -U numpy share | improve this answer ...
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Is an entity body allowed for an HTTP DELETE request?

... TRACE requests only, all other request types are unrestricted (section 9, and 9.8 specifically) For responses, this has been defined: whether a message-body is included depends on both request method and response status (section 4.3) a message-body is explicitly forbidden in responses to HEAD r...
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SQL Server Text type vs. varchar data type [closed]

I have variable length character data and want to store in SQL Server (2005) database. I want to learn some best practices about how to choose TEXT SQL type or choose VARCHAR SQL type, pros and cons in performance/footprint/function. ...
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How to unset a JavaScript variable?

...he named reference in what the ECMAScript spec calls "LexicalEnvironment", and the main difference is that LexicalEnvironments are nested - that is a LexicalEnvironment has a parent (what the ECMAScript spec calls "outer environment reference") and when Javascript fails to locate the reference in a ...
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How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)

My version of node is always v0.6.1-pre even after I install brew node and NVM install v0.6.19. 28 Answers ...
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Is the creation of Java class files deterministic?

...Oracle's javac actually produce different class files for the same input and compiler options? 11 Answers ...
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ASP.NET Identity's default Password Hasher - How does it work and is it secure?

...her that is default implemented in the UserManager that comes with MVC 5 and ASP.NET Identity Framework, is secure enough? And if so, if you could explain to me how it works? ...
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“Comparison method violates its general contract!”

...de throw an exception, "Comparison method violates its general contract!", and how do I fix it? 11 Answers ...