大约有 47,000 项符合查询结果(耗时:0.0437秒) [XML]
test if event handler is bound to an element in jQuery [duplicate]
...ution but seems effective enough! The second time you ‘click’ you can know with certainty that it will not create a duplicate binding.
I therefore use die() or unbind() like this:
$("#someid").die("click").live("click",function(){...
or
$("#someid").unbind("click").bind("click",function(){....
Subtract 7 days from current date
...
use dateByAddingTimeInterval method:
NSDate *now = [NSDate date];
NSDate *sevenDaysAgo = [now dateByAddingTimeInterval:-7*24*60*60];
NSLog(@"7 days ago: %@", sevenDaysAgo);
output:
7 days ago: 2012-04-11 11:35:38 +0000
Hope it helps
...
C++ performance vs. Java/C#
...to do all of its heap compression at once (a fairly expensive operation).
Now I can't speak for Java on this next point, but I know that C# for example will actually remove methods and method calls when it knows the body of the method is empty. And it will use this kind of logic throughout your cod...
Git error on git pull (unable to update local ref)
...te local ref, when doing a pull in SourceTree.
We used :
git gc --prune=now
This removes any duplicate reference objects which should fix the issue.
Here are a few links where you can learn more about git references and pruning :
git tip of the week
git-prune documentation
git references
...
Why can't I use the 'await' operator within the body of a lock statement?
...lock(), that in a synchronous world would execute on separate threads. But now with await (if allowed I mean) you could have two tasks executing within the lock block because the thread was reused. Hilarity ensues. Or did I misunderstand something?
– Gareth Wilson
...
Missing Maven dependencies in Eclipse project
...t set up with maven for resolving dependancies. It usually works fine, but now I am trying to compile and run it on a new PC and I have problem with missing dependencies in Eclipse.
...
Error java.lang.OutOfMemoryError: GC overhead limit exceeded
...ed 666 times using WORSE method
Triggered 354 times using BETTER method
Now granted, this is not the best test or the best design but when faced with a situation where you have no choice but implementing such a loop or when dealing with existing code that behaves badly, choosing to reuse objects ...
UIButton Long Press Event
...UIGestureRecognizerStateEnded ) {
NSLog(@"Long Press");
}
}
Now this would be the basic approach. You can also set the minimum duration of the press and how much error is tolerable. And also note that the method is called few times if you after recognizing the gesture so if you want t...
Numpy where function multiple conditions
...ue, False, False, False, False, False,
False, False], dtype=bool)
Now you can call np.where on the combined boolean array:
In [239]: np.where((dists >= r) & (dists <= r + dr))
Out[239]: (array([10, 11, 12]),)
In [240]: dists[np.where((dists >= r) & (dists <= r + dr))]
...
How to Set AllowOverride all
I want to set the AllowOverride all But I don't know how to do it. I have found the following code by searching the google and pasted it in .htaccess :
...