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How do I list all versions of a gem available at a remote site?
I'm trying to find out all the remotely available versions of a specified gem.
4 Answers
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Looping in a spiral
A friend was in need of an algorithm that would let him loop through the elements of an NxM matrix (N and M are odd). I came up with a solution, but I wanted to see if my fellow SO'ers could come up with a better solution.
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Any reason not to use '+' to concatenate two strings?
A common antipattern in Python is to concatenate a sequence of strings using + in a loop. This is bad because the Python interpreter has to create a new string object for each iteration, and it ends up taking quadratic time. (Recent versions of CPython can apparently optimize this in some cases, b...
What does the ^ operator do in Java?
What function does the ^ (caret) operator serve in Java?
17 Answers
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Configure Flask dev server to be visible across the network
I'm not sure if this is Flask specific, but when I run an app in dev mode ( http://localhost:5000 ), I cannot access it from other machines on the network (with http://[dev-host-ip]:5000 ). With Rails in dev mode, for example, it works fine. I couldn't find any docs regarding the Flask dev server c...
What does numpy.random.seed(0) do?
What does np.random.seed do in the below code from a Scikit-Learn tutorial? I'm not very familiar with NumPy's random state generator stuff, so I'd really appreciate a layman's terms explanation of this.
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Understanding “randomness”
I can't get my head around this, which is more random?
28 Answers
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How to validate an email address in JavaScript
Is there a regular expression to validate an email address in JavaScript?
95 Answers
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Fastest way to convert string to integer in PHP
Using PHP, what's the fastest way to convert a string like this: "123" to an integer?
8 Answers
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How to use glOrtho() in OpenGL?
I can't understand the usage of glOrtho . Can someone explain what it is used for?
3 Answers
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