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How can I view all the git repositories on my machine?
...ameter cannot be found that matches parameter name 'Attributes'. At line:1 char:28
– Dewald Swanepoel
Jan 30 '17 at 9:33
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When to use a “has_many :through” relation in Rails?
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You should use has_many :through if you need validations, callbacks, or extra attributes on the join model.
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Make Vim show ALL white spaces as a character
I can't find a way to make Vim show all white spaces as a character.
All I found was about tabs, trailing spaces etc.
23 An...
Threading in a PyQt application: Use Qt threads or Python threads?
... (although the caveat above still applies.)
Non-blocking I/O
Threads add extraordinarily complexity to your application. Especially when dealing with the already complex interaction between the Python interpreter and compiled module code. While many find event-based programming difficult to follow...
What are the differences between “=” and “
...on); and when isolated from surrounding logical structure, by braces or an extra pair of parentheses.
A confession: I lied earlier. There is one additional difference between the = and <- operators: they call distinct functions. By default these functions do the same thing but you can overrid...
Can a pointer to base point to an array of derived objects?
...= 0; i < 10; ++i) shapes[i]->draw();
}
Note that you have to do an extra step of initializing the Rectangle, since initializing the array only sets up the pointers, and not the objects themselves.
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Cross compile Go on OSX?
...os /usr/local/go/src/pkg/runtime/extern.go:137: cannot use theGoos as type string in const initializer
– ljgww
Aug 30 '12 at 18:38
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How to @link to a Enum Value using Javadoc
... Cmd + Shift + O (on Mac) auto-adjust your imports (this means if you have extra imports not being used, they're removed, as well as adding any imports you need).
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Confusion between numpy, scipy, matplotlib and pylab
...ort matplotlib.pyplot as plt.
Pylab is the same thing as pyplot, but with extra features (its use is currently discouraged).
pylab = pyplot + numpy
See more information here: Matplotlib, Pylab, Pyplot, etc: What's the difference between these and when to use each?
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Best way to remove from NSMutableArray while iterating?
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Extra memory needs to be allocated to do inverse. It's not an in-place algorithm and not a good idea in some cases. When you remove directly you just shift the array (which is very efficient since it won't move one by one, it...