大约有 9,000 项符合查询结果(耗时:0.0269秒) [XML]

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Easiest way to pass an AngularJS scope variable from directive to controller?

What is the easiest way to pass an AngularJS scope variable from directive to controller? All of the examples that I've seen seem so complex, isn't there a way I can access a controller from a directive, and set one of it's scope variables? ...
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What does the brk() system call do?

... as the end of the "data segment" because in traditional (pre-shared-libraries, pre-mmap) Unix the data segment was continuous with the heap; before program start, the kernel would load the "text" and "data" blocks into RAM starting at address zero (actually a little above address zero, so that the ...
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What is the difference between sigaction and signal?

...with prejudice - aka core dump) occurs. The exact behaviour of signal() varies between systems — and the standards permit those variations. These are generally good reasons for using sigaction() instead of signal(). However, the interface of sigaction() is undeniably more fiddly. Whichever of th...
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Why em instead of px?

...te measurements assume a nominal screen resolution of 96ppi and a nominal viewing distance of a desktop monitor, and on such a screen one px will be equal to one physical pixel on the screen and one in will be equal to 96 physical pixels. On screens that differ significantly in either pixel density...
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what exactly is device pixel ratio?

...y does this attribute measure. Can anyone please elaborate what does queries like this check? 4 Answers ...
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Local Storage vs Cookies

I want to reduce load times on my websites by moving all cookies into local storage since they seem to have the same functionality. Are there any pros/cons (especially performance-wise) in using local storage to replace cookie functionality except for the obvious compatibility issues? ...
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Explicitly calling return in a function or not

A while back I got rebuked by Simon Urbanek from the R core team (I believe) for recommending a user to explicitly calling return at the end of a function (his comment was deleted though): ...
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Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario

...n, where you do it to keep the UI responsive and don't care about how efficient it is. In ASP.NET, your concern is throughput, and all that context switching on all those worker threads is absolutely going to kill your throughput whether you use the ThreadPool or not. Please, if you find yourself ...
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Fast and responsive interactive charts/graphs: SVG, Canvas, other?

...ming. Geometric zooming means you apply a single transform to the entire viewport: when you zoom in, circles become bigger. Semantic zooming in contrast means you apply transforms to each circle individually: when you zoom in, the circles remain the same size but they spread out. Planethunters.org ...
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Which cryptographic hash function should I choose?

...iven a message, find another message that hashes the same. These properties are related but independent. For example, collision resistance implies second preimage resistance, but not the other way around. For any given application, you will have different requirements, needing one or more of thes...