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Best way to obfuscate an e-mail address on a website?
...
A lightweight way to obfuscate the href of an anchor is to base64-encode it:
> btoa('mailto:email@example.com')
< "bWFpbHRvOmVtYWlsQGV4YW1wbGUuY29t"
And then include it hardcoded:
<a href="javascript:window.location.href=atob('bWFpbHRvOmVtYWlsQGV4YW1wbGUuY29t')">E-Mai...
maximum value of int
... trivially extended for unsigned types:
// We can use it to define limits based on actual compiler built-in types also:
#define INT_MAX SIGNED_MAX(int)
// based on the above, we can extend it for unsigned types also:
#define UNSIGNED_MAX(x) ( (SIGNED_MAX(x)<<1) | 1 ) // We reuse SIGNED_MA...
Generate a heatmap in MatPlotLib using a scatter data set
...rom pip (see webpage documentation). Consider the following code, which is based on the example:
import numpy as np
import numpy.random
import matplotlib.pyplot as plt
import sphviewer as sph
def myplot(x, y, nb=32, xsize=500, ysize=500):
xmin = np.min(x)
xmax = np.max(x)
ymin = np....
How to show all shared libraries used by executables in Linux?
...tput (for just the /bin directory) will look something like this:
1 /lib64/libexpat.so.0
1 /lib64/libgcc_s.so.1
1 /lib64/libnsl.so.1
1 /lib64/libpcre.so.0
1 /lib64/libproc-3.2.7.so
1 /usr/lib64/libbeecrypt.so.6
1 /usr/lib64/libbz2.so.1
1 /usr/lib64/libelf.so.1
1 /usr/lib64/libpopt...
Visual Studio 64 bit?
Is there any 64 bit Visual Studio at all? Why not?
5 Answers
5
...
.NET console application as Windows service
...const string ServiceName = "MyService";
public class Service : ServiceBase
{
public Service()
{
ServiceName = Program.ServiceName;
}
protected override void OnStart(string[] args)
{
Program.Start(args);
}
prot...
Are GUID collisions possible?
I'm working on a database in SQL Server 2000 that uses a GUID for each user that uses the app it's tied to. Somehow, two users ended up with the same GUID. I know that microsoft uses an algorithm to generate a random GUID that has an extremely low chance of causing collisons, but is a collision stil...
Programmer Puzzle: Encoding a chess board state throughout a game
...ll cater for a lot of previously mentioned issues.
But we can do better.
Base 13 Encoding
It is often helpful to think of the board position as a very large number. This is often done in computer science. For example, the halting problem treats a computer program (rightly) as a large number.
The...
How to determine whether a given Linux is 32 bit or 64 bit?
...
Try uname -m. Which is short of uname --machine and it outputs:
x86_64 ==> 64-bit kernel
i686 ==> 32-bit kernel
Otherwise, not for the Linux kernel, but for the CPU, you type:
cat /proc/cpuinfo
or:
grep flags /proc/cpuinfo
Under "flags" parameter, you will see various values...
Does .NET provide an easy way convert bytes to KB, MB, GB, etc.?
...leaner and consise that the approved solution. However, strictly speaking based on the enum values it should be based on power of 1000, i.e. not 1024 (en.wikipedia.org/wiki/Terabyte) code... public static string ToSize(this long value, Unit unit) => $"{value / Math.Pow(1000, (long) unit):F2}{...