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How do I add a placeholder on a CharField in Django?
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edited Oct 13 '14 at 18:39
orokusaki
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What does the “Just” syntax mean in Haskell?
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213
It's actually just a normal data constructor that happens to be defined in the Prelude, which is...
What requirement was the tuple designed to solve?
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13 Answers
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What does -fPIC mean when building a shared library?
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3 Answers
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How can I compare two lists in python and return matches
...one, but by far the most obvious way to do it is:
>>> a = [1, 2, 3, 4, 5]
>>> b = [9, 8, 7, 6, 5]
>>> set(a) & set(b)
{5}
if order is significant you can do it with list comprehensions like this:
>>> [i for i, j in zip(a, b) if i == j]
[5]
(only works fo...
What is “Service Include” in a csproj file for?
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3 Answers
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What is tail recursion?
...ple function that adds the first N natural numbers. (e.g. sum(5) = 1 + 2 + 3 + 4 + 5 = 15).
Here is a simple JavaScript implementation that uses recursion:
function recsum(x) {
if (x === 1) {
return x;
} else {
return x + recsum(x - 1);
}
}
If you called recsum(5), th...
Bare asterisk in function arguments?
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232
Bare * is used to force the caller to use named arguments - so you cannot define a function wit...
stdlib and colored output in C
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Example in C:
#include <stdio.h>
#define ANSI_COLOR_RED "\x1b[31m"
#define ANSI_COLOR_GREEN "\x1b[32m"
#define ANSI_COLOR_YELLOW "\x1b[33m"
#define ANSI_COLOR_BLUE "\x1b[34m"
#define ANSI_COLOR_MAGENTA "\x1b[35m"
#define ANSI_COLOR_CYAN "\x1b[36m"
#define ANSI_COLOR_RESET "\x...
Overload with different return type in Java?
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answered Mar 13 '10 at 19:51
Alexander GesslerAlexander Gessler
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