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git: difference between “branchname” and “refs/heads/branchname”
... for somebody who is curious - git show-ref, which is available since Git v1.8.2.2, will show you all references you have in your local repository.
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What is the Python equivalent of Matlab's tic and toc functions?
...nclude <Python.h>
#include <mach/mach_time.h>
#define MAXDEPTH 100
uint64_t start[MAXDEPTH];
int lvl=0;
static PyObject* tic(PyObject *self, PyObject *args) {
start[lvl++] = mach_absolute_time();
Py_RETURN_NONE;
}
static PyObject* toc(PyObject *self, PyObject *args) {
return P...
How to generate a random string in Ruby
...he most upvotes:
require 'benchmark'
require 'securerandom'
len = 10
n = 100_000
Benchmark.bm(12) do |x|
x.report('SecureRandom') { n.times { SecureRandom.alphanumeric(len) } }
x.report('rand') do
o = [('a'..'z'), ('A'..'Z'), (0..9)].map(&:to_a).flatten
n.times { (0...len).map { o...
Dynamically replace the contents of a C# method?
... {
isRunningRef(__instance) = true;
if (___counter > 100)
return false;
___counter = 0;
return true;
}
static void Postfix(ref int __result)
{
__result *= 2;
}
}
Alternatively, manual patching with reflection
using SomeGam...
How to convert a Drawable to a Bitmap?
... @Matthias not to mention that.. the question itself, same author, has 100 votes :/
– quinestor
Dec 18 '12 at 17:29
2
...
Retrieve only the queried element in an object array in MongoDB collection
...
100
The new Aggregation Framework in MongoDB 2.2+ provides an alternative to Map/Reduce. The $unw...
Tuning nginx worker_process to obtain 100k hits per min
... @Ethan, why it should be devided by 2? If every second we get 100 new connections, and timeout is 5, then strting with sixth second, we will constantly have 5*100 connections that is still not terminated on the server side. we may have less if some users are aborted connections himself
...
Center image horizontally within a div
...ML
<div class="image-container">
<img src="http://placehold.it/100x100" />
</div>
CSS
.image-container {
display: flex;
justify-content: center;
}
Output:
body {
background: lightgray;
}
.image-container {
width: 200px;
display: flex;
justify-content:...
Change the image source on rollover using jQuery
...browsers that have JavaScript turned off using CSS:
#element {
width: 100px; /* width of image */
height: 200px; /* height of image */
background-image: url(/path/to/image.jpg);
}
#element:hover {
background-image: url(/path/to/other_image.jpg);
}
There's a longer description her...
Why do you have to call .items() when iterating over a dictionary in Python?
... -- which is a check I believe I may have performed, or wanted to perform, 100 times more rarely than what if k in C actually means, checking the presence of the key only and completely ignoring the value.
On the other hand, wanting to loop just on keys is quite common, e.g.:
for k in thedict:
...