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Copying PostgreSQL database to another server
I'm looking to copy a production PostgreSQL database to a development server. What's the quickest, easiest way to go about doing this?
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How do JavaScript closures work?
How would you explain JavaScript closures to someone with a knowledge of the concepts they consist of (for example functions, variables and the like), but does not understand closures themselves?
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Show data on mouseover of circle
...I mouseover one of the circles I would like it to popup with data (like x, y values, maybe more). Here is what I tried using:
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Printing a variable memory address in swift
Is there anyway to simulate the [NSString stringWithFormat:@"%p", myVar] , from Objective-C, in the new Swift language?
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Elegant ways to support equivalence (“equality”) in Python classes
When writing custom classes it is often important to allow equivalence by means of the == and != operators. In Python, this is made possible by implementing the __eq__ and __ne__ special methods, respectively. The easiest way I've found to do this is the following method:
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Difference between new and override
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The override modifier may be used on
virtual methods and must be used on
abstract methods. This indicates for
the compiler to use the last defined
implementation of a method. Even if
the method is called on a reference to
the base class ...
vertical & horizontal lines in matplotlib
I do not quite understand why I am unable to create horizontal and vertical lines at specified limits. I would like to bound the data by this box. However, the sides do not seem to comply with my instructions. Why is this?
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What is the Ruby (spaceship) operator?
What is the Ruby <=> (spaceship) operator? Is the operator implemented by any other languages?
6 Answers
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Matplotlib 2 Subplots, 1 Colorbar
I've spent entirely too long researching how to get two subplots to share the same y-axis with a single colorbar shared between the two in Matplotlib.
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Loop backwards using indices in Python?
I am trying to loop from 100 to 0. How do I do this in Python?
15 Answers
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