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What's the difference between the Dependency Injection and Service Locator patterns?
...ck implementations of its dependent objects. You could combine the two -- and inject the service locator (or a factory), if you wanted.
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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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How to execute an external program from within Node.js?
...lt of the child process. Example... if the process returns an exit code 0, and I want to call a different method, I seem to run into a plethora of errors.
– continuousqa
Mar 20 '15 at 23:59
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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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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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What is the difference between gmake and make?
I am trying to understand the difference between 'gmake' and 'make'?
4 Answers
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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:...
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...
How to define optional methods in Swift protocol?
... (well, no explicitly at least). This means you can conform structs, enums and non-NSObject classes to it. Also, this means you can take advantage of powerful generics system.
You can always be sure that all requirements are met when encountering types that conform to such protocol. It's always eith...
How to find index of list item in Swift?
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As swift is in some regards more functional than object-oriented (and Arrays are structs, not objects), use the function "find" to operate on the array, which returns an optional value, so be prepared to handle a nil value:
let arr:Array = ["a","b","c"]
find(arr, "c")! // 2
fi...