大约有 38,000 项符合查询结果(耗时:0.0412秒) [XML]
Select all child elements recursively in CSS
...
I know, it's a bit ugly. You could instead try writing more precise selectors, chances are, this would work too. (e.g. #head ul → #head ul#navi)
– anroesti
Feb 5 '11 at 22:46
...
How to return dictionary keys as a list in Python?
...
@naught101 Yes, .keys() is way more clear on what goes on.
– Felix D.
May 27 '18 at 21:43
2
...
Efficient string concatenation in C++
...ing a ton of extra + operations it is not efficient.
Why you can make it more efficient:
You are guaranteeing efficiency instead of trusting a delegate to do it efficiently for you
the std::string class knows nothing about the max size of your string, nor how often you will be concatenating to i...
Inserting HTML elements with JavaScript
...
this is way more complex than it needs to be - sime vidas's answer is much better
– JonnyRaa
Feb 5 '15 at 16:48
...
C# Float expression: strange behavior when casting the result float to int
.... I note that the C# compiler and the jit compiler are both allowed to use more precision at any time, and to do so inconsistently. And in fact, they do just that. This question has come up dozens of times on StackOverflow; see stackoverflow.com/questions/8795550/… for a recent example.
...
How to get overall CPU usage (e.g. 57%) on Linux [closed]
...
|
show 20 more comments
105
...
Case statement with multiple values in each 'when' block
...luates the expression a or b first before throwing it into the when. It's more surprising and less easy to handle for the language to have tokens that change behavior based on context, and then you wouldn't be able to use a real or expression on the right side of a when.
– Tay...
When should you use constexpr capability in C++11?
...
Suppose it does something a little more complicated.
constexpr int MeaningOfLife ( int a, int b ) { return a * b; }
const int meaningOfLife = MeaningOfLife( 6, 7 );
Now you have something that can be evaluated down to a constant while maintaining good readab...
How can I convert spaces to tabs in Vim or Linux?
...ow to convert spaces to tabs without finding what I need. There seem to be more questions about how to convert tabs to spaces, but I'm trying to do the opposite.
...
Delete local Git branches after deleting them on the remote repo
...r, or any other branch for that matter, doesn't get removed by greping for more. In that case you would go:
git branch --merged | grep -v "\*" | grep -v "YOUR_BRANCH_TO_KEEP" | xargs -n 1 git branch -d
So if we wanted to keep master, develop and staging for instance, we would go:
git branch --me...