大约有 42,000 项符合查询结果（耗时：0.0371秒） [XML]
What is a database transaction?
Can someone provide a straightforward (but not simpler than possible) explanation of a transaction as applied to computing (even if copied from Wikipedia)?
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How efficient is locking an unlocked mutex? What is the cost of a mutex?
In a low level language (C, C++ or whatever): I have the choice in between either having a bunch of mutexes (like what pthread gives me or whatever the native system library provides) or a single one for an object.
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What is the purpose of a stack? Why do we need it?
So I am learning MSIL right now to learn to debug my C# .NET applications.
7 Answers
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Why does 2 == [2] in JavaScript?
I recently discovered that 2 == [2] in JavaScript. As it turns out, this quirk has a couple of interesting consequences:
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How to make a whole 'div' clickable in html and css without JavaScript? [duplicate]
I want to make it so that a whole div is clickable and links to another page when clicked without JavaScript and with valid code/markup.
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What is a domain specific language? Anybody using it? And in what way?
I guess I am looking for some kind of intro and see if anybody have used it. Are there any particular advantages of using it?
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Is gcc's __attribute__((packed)) / #pragma pack unsafe?
In C, the compiler will lay out members of a struct in the order in which they're declared, with possible padding bytes inserted between members, or after the last member, to ensure that each member is aligned properly.
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When should you NOT use a Rules Engine? [closed]
I have a pretty decent list of the advantages of using a Rules Engine, as well as some reasons to use them, what I need is a list of the reasons why you should NOT use a Rules Engine
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What is an optional value in Swift?
From Apple's documentation :
13 Answers
13
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Why are quaternions used for rotations?
I'm a physicist, and have been learning some programming, and have come across a lot of people using quaternions for rotations instead of writing things in matrix/vector form.
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