大约有 13,071 项符合查询结果(耗时:0.0323秒) [XML]

https://stackoverflow.com/ques... 

What's the difference between an exclusive lock and a shared lock?

... I wrote this answer down because I thought this would be a fun (and fitting) analogy: Think of a lockable object as a blackboard (lockable) in a class room containing a teacher (writer) and many students (readers). While a teacher is writing something ...
https://stackoverflow.com/ques... 

Difference between size_t and std::size_t

...ize_t and std::size_t in terms of where they are declared, when they should be used and any other differentiating features? ...
https://stackoverflow.com/ques... 

What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon

What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phone. 5 Answers ...
https://stackoverflow.com/ques... 

What is the purpose of AsQueryable()?

Is the purpose of AsQueryable() just so you can pass around an IEnumerable to methods that might expect IQueryable , or is there a useful reason to represent IEnumerable as IQueryable ? For example, is it supposed to be for cases like this: ...
https://stackoverflow.com/ques... 

font-style: italic vs oblique in CSS

... In the purest (type designer) sense, an oblique is a roman font that has been skewed a certain number of degrees (8-12 degrees, usually). An italic is created by the type designer with specific characters (notably lowercase a) drawn ...
https://stackoverflow.com/ques... 

Why doesn't the JVM cache JIT compiled code?

The canonical JVM implementation from Sun applies some pretty sophisticated optimization to bytecode to obtain near-native execution speeds after the code has been run a few times. ...
https://stackoverflow.com/ques... 

Why JSF saves the state of UI components on server?

Now, it is no longer necessary to save state while using JSF. A high performance Stateless JSF implementation is available for use. See this blog & this question for relevant details & discussion. Also, there is an open issue to include in JSF specs, an option to provide stateless mode for JSF...
https://stackoverflow.com/ques... 

Does MySQL ignore null values on unique constraints?

I have an email column that I want to be unique. But I also want it to accept null values. Can my database have 2 null emails that way? ...
https://stackoverflow.com/ques... 

How does Bluebird's util.toFastProperties function make an object's properties “fast”?

In Bluebird's util.js file , it has the following function: 1 Answer 1 ...
https://stackoverflow.com/ques... 

Mock vs MagicMock

My understanding is that MagicMock is a superset of Mock that automatically does "magic methods" thus seamlessly providing support for lists, iterations and so on... Then what is the reason for plain Mock existing? Isn't that just a stripped down version of MagicMock that can be practically ...