大约有 8,100 项符合查询结果(耗时:0.0219秒) [XML]

https://stackoverflow.com/ques... 

Update Row if it Exists Else Insert Logic with Entity Framework

Does anyone have suggestions on the most efficient way to implement "update row if it exists else insert" logic using Entity Framework? ...
https://stackoverflow.com/ques... 

How to get the function name from within that function?

...it: nus's regex based answer below achieves the same thing, but has better performance! In ES6, you can just use myFunction.name. Note: Beware that some JS minifiers might throw away function names, to compress better; you may need to tweak their settings to avoid that. ...
https://stackoverflow.com/ques... 

In Javascript/jQuery what does (e) mean?

I am new to JavaScript/jQuery and I've been learning how to make functions. A lot of functions have cropped up with (e) in brackets. Let me show you what I mean: ...
https://stackoverflow.com/ques... 

Why is 'this' a pointer and not a reference?

I was reading the answers to this question C++ pros and cons and got this doubt while reading the comments. 2 Answers ...
https://stackoverflow.com/ques... 

Configuring Vim for C++

I would like to make vim my C++ editor. I have very little experience working with it and need help in configuring vim to work with C++. I need such features as ...
https://stackoverflow.com/ques... 

What does $1 [QSA,L] mean in my .htaccess file?

... Not the place to give a complete tutorial, but here it is in short; RewriteCond basically means "execute the next RewriteRule only if this is true". The !-l path is the condition that the request is not for a link (! means not, -l m...
https://stackoverflow.com/ques... 

How to display all methods of an object?

... want to know how to list all methods available for an object like for example: 8 Answers ...
https://stackoverflow.com/ques... 

How to create directories recursively in ruby?

... Use mkdir_p: FileUtils.mkdir_p '/a/b/c' The _p is a unix holdover for parent/path you can also use the alias mkpath if that makes more sense for you. FileUtils.mkpath '/a/b/c' In Ruby 1.9 FileUtils was removed from the core, so y...
https://stackoverflow.com/ques... 

What are the pros and cons of the leading Java HTML parsers? [closed]

Searching SO and Google, I've found that there are a few Java HTML parsers which are consistently recommended by various parties. Unfortunately it's hard to find any information on the strengths and weaknesses of the various libraries. I'm hoping that some people have spent some comparing these libr...
https://stackoverflow.com/ques... 

Declaration suffix for decimal type

...e seen that there exists the m-suffix (where m stands for money). Is this appropriate for any decimals or is there a more general assignment (d stands for double, that is for sure not the right thing although a direct conversion is supported). ...