大约有 42,000 项符合查询结果(耗时:0.0678秒) [XML]

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How does the new automatic reference counting mechanism work?

...es to Objective-C has to learn the rigid rules of when to retain, release, and autorelease objects. These rules even specify naming conventions that imply the retain count of objects returned from methods. Memory management in Objective-C becomes second nature once you take these rules to heart an...
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What is the difference between JSF, Servlet and JSP?

...ccess backend data (via attributes available in the page, request, session and application scopes), mostly in combination with taglibs. When a JSP is requested for the first time or when the web app starts up, the servlet container will compile it into a class extending HttpServlet and use it during...
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What is difference between functional and imperative programming languages?

...object-oriented programming (OOP) languages such as C#, Visual Basic, C++, and Java were designed to primarily support imperative (procedural) programming, whereas Haskell/gofer like languages are purely functional. Can anybody elaborate on what is the difference between these two ways of programmin...
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How should a model be structured in MVC? [closed]

I am just getting a grasp on the MVC framework and I often wonder how much code should go in the model. I tend to have a data access class that has methods like this: ...
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Differences between socket.io and websockets

What are the differences between socket.io and websockets in node.js? Are they both server push technologies? The only differences I felt was, ...
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Bitwise operation and usage

...ators that work on multi-bit values, but conceptually one bit at a time. AND is 1 only if both of its inputs are 1, otherwise it's 0. OR is 1 if one or both of its inputs are 1, otherwise it's 0. XOR is 1 only if exactly one of its inputs are 1, otherwise it's 0. NOT is 1 only if its input is 0, o...
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Difference between initLoader and restartLoader in LoaderManager

I'm completely lost regarding the differences between the initLoader and the restartLoader functions of the LoaderManager : ...
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What is the difference between localStorage, sessionStorage, session and cookies?

What are the technical pros and cons of localStorage, sessionStorage, session and cookies, and when would I use one over the other? ...
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Does anyone beside me just NOT get ASP.NET MVC? [closed]

I've been fiddling with ASP.NET MVC since the CTP, and I like a lot of things they did, but there are things I just don't get. ...
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Controlling fps with requestAnimationFrame?

...e for the most part, but right now I'm trying to do some canvas animations and I was wondering: Is there any way to make sure it runs at a certain fps? I understand that the purpose of rAF is for consistently smooth animations, and I might run the risk of making my animation choppy, but right now it...