大约有 42,000 项符合查询结果(耗时:0.0968秒) [XML]

https://stackoverflow.com/ques... 

NoSql Crash Course/Tutorial [closed]

I've seen NoSQL pop up quite a bit on SO and I have a solid understanding of why you would use it (from here, Wikipedia, etc). This could be due to the lack of concrete and uniform definition of what it is (more of a paradigm than concrete implementation), but I'm struggling to wrap my head aroun...
https://stackoverflow.com/ques... 

Chrome: console.log, console.debug are not working

Console.log and debug not printing, only return undefined. Why it can be? I've tried to re-install chrome, but it doesn't help. ...
https://stackoverflow.com/ques... 

What does the restrict keyword mean in C++?

...zation, Christer Ericson says that while restrict is not part of the C++ standard yet, that it is supported by many compilers and he recommends it's usage when available: restrict keyword ! New to 1999 ANSI/ISO C standard ! Not in C++ standard yet, but supported by many C++ comp...
https://stackoverflow.com/ques... 

How to use putExtra() and getExtra() for string data

Can someone please tell me how exactly to use getExtra() and putExtra() for intents? Actually I have a string variable, say str, which stores some string data. Now, I want to send this data from one activity to another activity. ...
https://stackoverflow.com/ques... 

MySQL, better to insert NULL or empty string?

...a lot of different fields. Some of the fields are optional while some are mandatory. In my DB I have a table which holds all these values, is it better practice to insert a NULL value or an empty string into the DB columns where the user didn't put any data? ...
https://stackoverflow.com/ques... 

must appear in the GROUP BY clause or be used in an aggregate function

... To workaround this issue, you must calculate the aggregate in a sub-query and then join it with itself to get the additional columns you'd need to show: SELECT m.cname, m.wmname, t.mx FROM ( SELECT cname, MAX(avg) AS mx FROM makerar GROUP BY cname ) t JOIN makerar m ON m.cname = t....
https://stackoverflow.com/ques... 

Undefined reference to static class member

...ion creates a scoped integer constant which you can't take the address of, and vector takes a reference param. – Evan Teran Nov 7 '08 at 18:08 10 ...
https://stackoverflow.com/ques... 

Should I always return IEnumerable instead of IList?

...t;T>: IndexOf(T item) Insert(int index, T item) RemoveAt(int index) and Properties: T this[int index] { get; set; } If you need these methods in any way, then by all means return IList<T>. Also, if the method that consumes your IEnumerable<T> result is expecting an IList<T...
https://stackoverflow.com/ques... 

Running karma after installation results in 'karma' is not recognized as an internal or external com

... The command line interface is in a separate package. To install this use: npm install -g karma-cli share | improve this an...
https://stackoverflow.com/ques... 

Getting the application's directory from a WPF application

...ld use the first alternative. It looks simpler, doesn't have a method call and causes less doubt on what the line actually does when reading. – Filip Oct 21 '11 at 3:11 3 ...