大约有 40,000 项符合查询结果(耗时:0.0338秒) [XML]

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Ruby: extend self

...ea of extend . However, what's happening in this segment of code? Specifically, what does extend do? Is it just a convenient way of making the instance methods into class methods? Why would you do it this way rather than specifying class methods from the beginning? ...
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jquery $(window).width() and $(window).height() return different values when viewport has not been r

I am writing a site using jquery that repeatedly calls $(window).width() and $(window).height() to position and size elements based on the viewport size. ...
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Correct use of flush() in JPA/Hibernate

...nstructions they are supposed to send to the database, often until you actually commit the transaction. For example, you call em.persist(), Hibernate remembers it has to make a database INSERT, but does not actually execute the instruction until you commit the transaction. Afaik, this is mainly done...
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Can I publish a private NuGet package?

... similar teams at my company are working on. However, the assembly isn't really code that I want to share with the world. ...
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PermGen elimination in JDK 8

I have installed JDK 8 and trying to run Eclipse. I am getting following warning message: 6 Answers ...
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What's the difference of ContentType and MimeType

... What's the main difference between the each one, and when is right to call something mimetype as opposed to content-type ? Am i being pitty and grammar nazi? The reason isn't only backward compatibility, and I'm afraid the usually excellent Django documentation is a bit hand-wavy about i...
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check if directory exists and delete in one command unix

...y exists or not. This command may work and produce similar results but actually doing a test before the command makes more sense. – Ankur Chauhan Jan 28 '13 at 5:04 ...
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How do I convert struct System.Byte byte[] to a System.IO.Stream object in C#?

... This is the best answer. It's concise and covers all the practical applications. There's a gotcha with just using the byte array based constructor as indicated here--the resulting stream is not re-sizable. – Jduv Jul 19 '12 at 3:56 ...
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Difference between GeoJSON and TopoJSON

... encoding of coordinates, TopoJSON files are often an order of magnitude smaller than GeoJSON files. The secondary advantage of TopoJSON files is that encoding the topology has useful applications, such as topology-preserving simplification (similar to MapShaper) and automatic mesh generation (as in...
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How to convert CharSequence to String?

... @TheOnlyAnil, does calling setText(CharSequence) not do what you need? – Mike Samuel May 4 '15 at 20:31 ...