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How to remove a key from Hash and get the remaining hash in Ruby/Rails?
To add a new pair to Hash I do:
14 Answers
14
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How to get a random number in Ruby
...o simulate a roll of a six-sided die, you'd use: 1 + rand(6). A roll in craps could be simulated with 2 + rand(6) + rand(6).
Finally, if you just need a random float, just call rand with no arguments.
As Marc-André Lafortune mentions in his answer below (go upvote it), Ruby 1.9.2 has its o...
How do I fix blurry text in my HTML5 canvas?
... a total n00b with HTML5 and am working with the canvas to render shapes, colors, and text. In my app, I have a view adapter that creates a canvas dynamically, and fills it with content. This works really nicely, except that my text is rendered very fuzzy/blurry/stretched. I have seen a lot ...
How do I run a Python script from C#?
...e UseShellExecute = false.
If you don't use the shell, you will have to supply the complete path to the python executable as FileName, and build the Arguments string to supply both your script and the file you want to read.
Also note, that you can't RedirectStandardOutput unless UseShellExecute = ...
Best way to center a on a page vertically and horizontally? [duplicate]
Best way to center a <div> element on a page both vertically and horizontally?
30 Answers
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Get program execution time in the shell
...thing in a linux shell under a few different conditions, and be able to output the execution time of each execution.
10 Ans...
How to randomly pick an element from an array
I am looking for solution to pick number randomly from an integer array.
12 Answers
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Do I cast the result of malloc?
... result, since:
It is unnecessary, as void * is automatically and safely promoted to any other pointer type in this case.
It adds clutter to the code, casts are not very easy to read (especially if the pointer type is long).
It makes you repeat yourself, which is generally bad.
It can hide an erro...
How do I sort a vector of pairs based on the second element of the pair?
If I have a vector of pairs:
7 Answers
7
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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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