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How to get unique values in an array
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120
Since I went on about it in the comments for @Rocket's answer, I may as well provide an example ...
html5 - canvas element - Multiple layers
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<div style="position: relative;">
<canvas id="layer1" width="100" height="100"
style="position: absolute; left: 0; top: 0; z-index: 0;"></canvas>
<canvas id="layer2" width="100" height="100"
style="position: absolute; left: 0; top: 0; z-index: 1;"></canvas>...
Creating dataframe from a dictionary where entries have different lengths
Say I have a dictionary with 10 key-value pairs. Each entry holds a numpy array. However, the length of the array is not the same for all of them.
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jQuery .hasClass() vs .is()
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edited Jun 20 at 9:12
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111 silver badge
answered Feb 4 '11 at 18:30
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Enabling error display in PHP via htaccess only
...hanges.php
– silex
May 25 '11 at 17:01
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How to convert an Stream into a byte[] in C#? [duplicate]
...] ReadToEnd(System.IO.Stream stream)
{
long originalPosition = 0;
if(stream.CanSeek)
{
originalPosition = stream.Position;
stream.Position = 0;
}
try
{
byte[] readBuffer = new byte[4096];
int tot...
ruby convert array into function arguments
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104
You can turn an Array into an argument list with the * (or "splat") operator:
a = [0, 1, 2, 3,...
CSS z-index paradox flower
...tp://jsfiddle.net/Kx2k5/1/
(successfully tested on Fx27, Ch33, IE9, Sf5.1.10 and Op19)
CSS
.item {
/* include borders on width and height */
-webkit-box-sizing : border-box;
-moz-box-sizing : border-box;
box-sizing : border-box;
...
}
.i1:after {
content: "";
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
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Yes, MD5 is somewhat less CPU-intensive. On my Intel x86 (Core2 Quad Q6600, 2.4 GHz, using one core), I get this in 32-bit mode:
MD5 411
SHA-1 218
SHA-256 118
SHA-512 46
and this in 64-bit mode:
MD5 407
SHA-1 312
SHA-256 148
SHA-512 189
Figures are in megabytes ...
Parallel.ForEach vs Task.Factory.StartNew
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305
The first is a much better option.
Parallel.ForEach, internally, uses a Partitioner<T> t...