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How efficient is locking an unlocked mutex? What is the cost of a mutex?
...hread gives me or whatever the native system library provides) or a single one for an object.
5 Answers
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Is it safe to use Project Lombok? [closed]
...(To be clear from the start, I have no particular views on Project Lombok, one way or the other.)
Before you use Project Lombok (or any other game-changing technology) in some project (open source or other wise), you need to make sure that the project stake holders agree to this. This includes the...
How to create a drop shadow only on one side of an element?
...you can do this with just an extra parameter to the box-shadow CSS as everyone else just pointed out. Here's the demo:
http://jsfiddle.net/K88H9/821/
CSS
-webkit-box-shadow: 0 4px 4px -2px #000000;
-moz-box-shadow: 0 4px 4px -2px #000000;
box-shadow: 0 4px 4px -2px #000000;
This wo...
ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
...VOKE and DROP USER to do it right. I'm indebted to all three answers (this one just happens to be the one that bailed me out of my present predicament).
– Russ Bateman
Apr 5 '11 at 17:05
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How to get the focused element with jQuery?
...focus');
// No jQuery:
elem === elem.ownerDocument.activeElement;
Which one should you use? quoting the jQuery docs:
As with other pseudo-class selectors (those that begin with a ":"), it is recommended to precede :focus with a tag name or some other selector; otherwise, the universal selecto...
“unrecognized selector sent to instance” error in Objective-C
...f the string it will not, and the receiver will get an error if it expects one. It is easy to miss the colon if you are dynamically creating the event name.
The receiver code options look like this:
- (void)doneBtnTui:(id)sender {
NSLog(@"Done Button - with sender");
}
or
- (void)doneBtnTui {
...
How to programmatically click a button in WPF?
...ts using a provided factory to get the automation peer instead of creating one yourself.
– Greg D
Apr 8 '09 at 11:46
7
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When should one use HTML entities?
...re in which situations I'm supposed to use the HTML entities and for which ones should I just use the UTF-8 character. For example,
...
Remove non-utf8 characters from string
...e sequence 11110xxx 10xxxxxx * 3
){1,100} # ...one or more times
)
| . # anything else
/x
END;
preg_replace($regex, '$1', $text);
It searches for UTF-8 sequences, and captures those into group 1. It also matches single bytes that could ...
Twitter Bootstrap - add top space between rows
...ge layout role. Anyway, I'm just trying to help, my solution is a working one for the problem.
– Acyra
Jan 21 '13 at 2:10
11
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