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How do I find out which DOM element has the focus?
...ript, which element currently has focus. I've been looking through the DOM and haven't found what I need, yet. Is there a way to do this, and how?
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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...
What does this gdb output mean?
I've got a button that plays a sound, and it seems to work perfectly fine on the simulator, but i'm getting this message:
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Chrome's remote debugging (USB debugging) not working for Samsung Galaxy S3 running android 4.3
Ever since I upgraded my Samsung Galaxy S3 to android 4.3 (from 4.1.2) I am unable to use Chrome's remote debugging for android (more details here ).
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Stretch child div height to fill parent that has dynamic height
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It works and doesn't require any CSS on the child. That's because a CSS Grid cell will have auto row and cell by default. It actually works pretty nicely with IE if you use display: -ms-grid to avoid some flexbugs, as long you only ha...
error opening HPROF file: IOException: Unknown HPROF Version
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The hprof file you get from Android has android specific format. You should convert hprof file take from Android OS into standard hprof format. For this you can use hprof-conv tool that is located at AndroidSDK/tools/hprof-conv.
For example:
hprof-co...
NSString property: copy or retain?
... behind its back, you should mark the properties representing them copy. (And if you write the setter yourself instead of using @synthesize you should remember to actually use copy instead of retain in it.)
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What does `kill -0 $pid` in a shell script do?
... 0 to a given PID just checks if any process with the given PID is running and you have the permission to send a signal to it.
For more information see the following manpages:
kill(1)
$ man 1 kill
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If sig is 0, then no signal is sent, but error checking is still performed.
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kill(2)
$ man...
How to write to a file, using the logging Python module?
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An example of using logging.basicConfig rather than logging.fileHandler()
logging.basicConfig(filename=logname,
filemode='a',
format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
datefmt='%H:...
Find all elements on a page whose element ID contains a certain text using jQuery
...l elements.
See the Attribute Contains Selectors, as well as the :visible and :hidden selectors.
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