大约有 47,000 项符合查询结果(耗时:0.0554秒) [XML]

https://stackoverflow.com/ques... 

How do you fix a bad merge, and replay your good commits onto a fixed merge?

... the one described in the question. This recipe is for fixing a bad merge, and replaying your good commits onto a fixed merge. Although filter-branch will do what you want, it is quite a complex command and I would probably choose to do this with git rebase. It's probably a personal preference. fil...
https://stackoverflow.com/ques... 

Why can't an anonymous method be assigned to var?

...to be the default instead of Predicate or Action or any other possibility? And, for lambdas, why is it obvious that the intention is to choose the delegate form, rather than the expression tree form? But we could say that Func is special, and that the inferred type of a lambda or anonymous method i...
https://stackoverflow.com/ques... 

Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?

...ng functions, time , clock getrusage , clock_gettime , gettimeofday and timespec_get , I want to understand clearly how they are implemented and what are their return values in order to know in which situation I have to use them. ...
https://stackoverflow.com/ques... 

How to check if a symlink exists

... -L returns true if the "file" exists and is a symbolic link (the linked file may or may not exist). You want -f (returns true if file exists and is a regular file) or maybe just -e (returns true if file exists regardless of type). According to the GNU manpage, ...
https://stackoverflow.com/ques... 

When to use .First and when to use .FirstOrDefault with LINQ?

I've searched around and haven't really found a clear answer as to when you'd want to use .First and when you'd want to use .FirstOrDefault with LINQ. ...
https://stackoverflow.com/ques... 

What is non-blocking or asynchronous I/O in Node.js?

...rage is a blocking operation as it stalls execution to read. On the other hand, fetch is a non-blocking operation as it does not stall alert(3) from execution. // Blocking: 1,... 2 alert(1); var value = localStorage.getItem('foo'); alert(2); // Non-blocking: 1, 3,... 2 alert(1); fetch('example.com...
https://stackoverflow.com/ques... 

Clojure differences between Ref, Var, Agent, Atom, with examples

...here to use Ref, Var, Agent, Atom. I read book, but, still couldn't understand the real world examples. 5 Answers ...
https://stackoverflow.com/ques... 

“Cloning” row or column vectors

... into a 2D array with length 1 in the first axis (vertical on your screen) and length 3 in the second axis (horizontal on your screen). Transposing then makes it have length 3 in the first axis and length 1 in the second axis. A tile shape of (1, 3) copies this column over three times, which is why ...
https://stackoverflow.com/ques... 

Which is faster: multiple single INSERTs or one multiple-row INSERT?

... I know I'm answering this question almost two and a half years after it was asked, but I just wanted to provide some hard data from a project I'm working on right now that shows that indeed doing multiple VALUE blocks per insert is MUCH faster than sequential single VALU...
https://stackoverflow.com/ques... 

Big-O for Eight Year Olds? [duplicate]

I'm asking more about what this means to my code. I understand the concepts mathematically, I just have a hard time wrapping my head around what they mean conceptually. For example, if one were to perform an O(1) operation on a data structure, I understand that the number of operations it has to p...