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Private and Protected Members : C++

... Public members of a class A are accessible for all and everyone. Protected members of a class A are not accessible outside of A's code, but is accessible from the code of any class derived from A. Private members of a class A are not accessible outside of A's code, or f...
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Java's L number (long) specification

It appears that when you type in a number in Java, the compiler automatically reads it as an integer, which is why when you type in (long) 6000000000 (not in integer's range) it will complain that 6000000000 is not an integer. To correct this, I had to specify 6000000000L . I just learned abo...
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How does collections.defaultdict work?

... Usually, a Python dictionary throws a KeyError if you try to get an item with a key that is not currently in the dictionary. The defaultdict in contrast will simply create any items that you try to access (provided of course th...
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What is a method that can be used to increment letters?

...ded to expand it a bit beyond the scope of the original question to potentially help people who are stumbling on this from Google. I find that what I often want is something that will generate sequential, unique strings in a certain character set (such as only using letters), so I've updated this a...
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How can I cast int to enum?

... (e.g. "2342342" -- assuming that's not a value of your enum), it will actually allow that without throwing an error! Your enum will have that value (2342342) even though it's not a valid choice in the enum itself. – JoeCool Jun 25 '13 at 15:14 ...
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Where is a complete example of logging.config.dictConfig?

... All those concise, beautiful YAML snippets in the python logging.config docs just can't be read directly. Bummer. – JimB May 17 '18 at 18:19 ...
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Dynamically updating plot in matplotlib

...out the more modern animation examples in the matplotlib documentation. Finally, the animation API defines a function FuncAnimation which animates a function in time. This function could just be the function you use to acquire your data. Each method basically sets the data property of the object be...
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Tracking Google Analytics Page Views with AngularJS

...cs does not count it as a new page load. Fortunately there is a way to manually tell GA to log a url as a new pageview. _gaq.push(['_trackPageview', '<url>']); would do the job, but how to bind that with AngularJS? Here is a service which you could use: (function(angular) { angular.modu...
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Getting the docstring from a function

... On ipython or jupyter notebook, you can use all the above mentioned ways, but i go with my_func? or ?my_func for quick summary of both method signature and docstring. I avoid using my_func?? (as commented by @rohan) for docstring and use it only to check th...
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Remove a cookie

... @machineaddict unset($_COOKIE['Hello']); is actually important if you might check the cookie somewhere later in the code. – Andreas Hultgren Jun 13 '14 at 12:08 ...