大约有 40,000 项符合查询结果（耗时：0.0606秒） [XML]
Fastest way to determine if an integer's square root is an integer
...the classical way.
// The correctness is not trivial as the conversion from long to double is lossy!
final long tst = (long) Math.sqrt(x);
return tst * tst == x;
}
The first test catches most non-squares quickly. It uses a 64-item table packed in a long, so there's no array access cost ...
How to duplicate a git repository? (without forking)
...py whole of one onto the other empty one which has different access levels from the first one. The copy and the mother repository should not be linked together.
...
How Python web frameworks, WSGI and CGI fit together
... also provides you a function that will formulate the response, saving you from a lot of formatting details.
What do I need to know / install / do if I want to run a web framework (say web.py or cherrypy) on my basic CGI configuration?
Recall that forking a subprocess is expensive. There are two ...
Real mouse position in canvas [duplicate]
...ientX - rect.left,
y: evt.clientY - rect.top
};
}
Just call it from your event with the event and canvas as arguments. It returns an object with x and y for the mouse positions.
As the mouse position you are getting is relative to the client window you'll have to subtract the position o...
AngularJS ng-style with a conditional expression
...
As @Yoshi said, from angular 1.1.5 you can use-it without any change.
If you use angular < 1.1.5, you can use ng-class.
.largeWidth {
width: 100%;
}
.smallWidth {
width: 0%;
}
// [...]
ng-class="{largeWidth: myVar == 'ok', sm...
How to fire AJAX request Periodically?
... trick. I wanted to highlight a bit more advanced technique that I learned from this excellent video by Paul Irish: http://paulirish.com/2010/10-things-i-learned-from-the-jquery-source/
For periodic tasks that might end up taking longer than the repeat interval (like an HTTP request on a slow conne...
Why a function checking if a string is empty always returns true? [closed]
... the empty reference is already at the end of the accepted answer from cletus. See as well that this question and answer thread is from april 2009. Anyway thanks for your input. I'm giving you a +1 for a first answer.
– regilero
Jan 10 '12 at 20:10
...
What's the difference between Cache-Control: max-age=0 and no-cache?
...ieve max-age=0 simply tells caches (and user agents) the response is stale from the get-go and so they SHOULD revalidate the response (eg. with the If-Not-Modified header) before using a cached copy, whereas, no-cache tells them they MUST revalidate before using a cached copy. From 14.9.1 What is C...
How to create a subdirectory for a project QtCreator?
...
Can I do this nesting from the IDE or do I have to manually set those files and dirs?
– gruszczy
Jul 24 '09 at 12:19
1
...
Remove multiple whitespaces
I'm getting $row['message'] from a MySQL database and I need to remove all whitespace like \n \t and so on.
15 Answer...