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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
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Purpose of ESI & EDI registers?
...erations that work on a bunch of bytes at a time, and they kind of put the CPU in automatic. Because you're not explicitly coding loops, they do their thing more efficiently (usually) than a hand-coded loop.
Just in case you're wondering: Depending on how you set the operation up, repeated storing ...
What's the difference between an inverted index and a plain old index?
In software engineering we create indexes all the time (e.g., in databases) but I also hear a lot of people talk about inverted indices. Is there something fundamentally different between the two? They sound like the same thing.
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What are copy elision and return value optimization?
... is an optimization implemented by most compilers to prevent extra (potentially expensive) copies in certain situations. It makes returning by value or pass-by-value feasible in practice (restrictions apply).
It's the only form of optimization that elides (ha!) the as-if rule - copy elision can be a...
How do you parse and process HTML/XML in PHP?
... one of the native XML extensions since they come bundled with PHP, are usually faster than all the 3rd party libs and give me all the control I need over the markup.
DOM
The DOM extension allows you to operate on XML documents through the DOM API with PHP 5. It is an implementation of the W3C'...
Do on-demand Mac OS X cloud services exist, comparable to Amazon's EC2 on-demand instances? [closed]
...t? (iCloud looks to be just a data storage service, rather than a service allowing remote login, etc.)
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Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...d procedures are always faster. So, since they're always faster, use them ALL THE TIME .
20 Answers
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What does SynchronizationContext do?
...t. The running thread can be associated with a synchronization context by calling the static SynchronizationContext.SetSynchronizationContext method, and the current context of the running thread can be queried via the SynchronizationContext.Current property.
Despite what I just wrote (each thread h...
Best Practice for Exception Handling in a Windows Forms Application?
...standing of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got yet is a feel for how to translate the basic concepts into a good exception-handling model in my application.
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When is the thread pool used?
... it completes the work, and the listener then returns the response to the caller.
4 Answers
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