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Dynamically creating keys in a JavaScript associative array

...rk well, are overcomplicated: They use new Array(), which is an overkill (and an overhead) for a simple associative array (AKA dictionary). The better ones use new Object(). It works fine, but why all this extra typing? This question is tagged "beginner", so let's make it simple. The über-simple ...
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Checking length of dictionary object [duplicate]

... What I do is use Object.keys() to return a list of all the keys and then get the length of that Object.keys(dictionary).length share | improve this answer | foll...
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Merging two arrays in .NET

Is there a built in function in .NET 2.0 that will take two arrays and merge them into one array? 21 Answers ...
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How to measure time taken between lines of code in python?

...f you want to measure CPU time, can use time.process_time() for Python 3.3 and above: import time start = time.process_time() # your code here print(time.process_time() - start) First call turns the timer on, and second call tells you how many seconds have elapsed. There is also a function t...
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Retrieve only the queried element in an object array in MongoDB collection

... this query only return the array "shapes" and it won't return other fields. Anyone knows how to return other fields also? – Mark Thien Jul 29 '16 at 0:24 ...
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How to redirect single url in nginx?

... @Cybolic I just tested this on a docker image with the version 1.10.3 and it was fine, could you provide your config file somehow? You probably are missing something. – Mohammad AbuShady Sep 27 '17 at 9:16 ...
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Need to handle uncaught exception and send log file

... Here's the complete solution (almost: I omitted the UI layout and button handling) - derived from a lot of experimentation and various posts from others related to issues that came up along the way. There are a number of things you need to do: Handle uncaughtException in your Appli...
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What is Ruby equivalent of Python's `s= “hello, %s. Where is %s?” % (“John”,“Mary”)`

...mber to use square brackets there. Ruby doesn't have tuples, just arrays, and those use square brackets. share | improve this answer | follow | ...
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How to show current time in JavaScript in the format HH:MM:SS?

...cepted answer, cause it answers exactly the question, uses native function and is the shortest working code to get what is asked for. – vchrizz Dec 13 '16 at 2:04 10 ...
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How do I detect when someone shakes an iPhone?

...btype == UIEventSubtypeMotionShake ) { // Put in code here to handle shake } if ( [super respondsToSelector:@selector(motionEnded:withEvent:)] ) [super motionEnded:motion withEvent:event]; } - (BOOL)canBecomeFirstResponder { return YES; } @end You can easily transfor...