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Get difference between two lists
...is:
s = set(temp2)
temp3 = [x for x in temp1 if x not in s]
Performance test
import timeit
init = 'temp1 = list(range(100)); temp2 = [i * 2 for i in range(50)]'
print timeit.timeit('list(set(temp1) - set(temp2))', init, number = 100000)
print timeit.timeit('s = set(temp2);[x for x in temp1 if x ...
NOW() function in PHP
...slightly better performance than date_create()->format(). See benchmark test below.
$start = time();
for ($i = 0; $i <= 5000000; $i++) {
$a = date_create('now')->format('Y-m-d H:i:s');
}
$end = time();
$elapsedTimeA = $end - $start;
echo 'Case A, elapsed time in sec...
No connection could be made because the target machine actively refused it?
...e web service has started up more slowly than the client application while testing. Still adding retry logic is defintely the way to go.
– Martin Brown
Mar 8 '12 at 9:42
...
What are the main disadvantages of Java Server Faces 2.0?
... faster than with ASP.NET MVC, especially on AJAX-heavy sites. Integration testing looked very nice too.
13 Answers
...
How to read from a file or STDIN in Bash?
...
Here is the simplest way:
#!/bin/sh
cat -
Usage:
$ echo test | sh my_script.sh
test
To assign stdin to the variable, you may use: STDIN=$(cat -) or just simply STDIN=$(cat) as operator is not necessary (as per @mklement0 comment).
To parse each line from the standard input, t...
How to log cron jobs?
...the command from that user's permissions. Just for verification, while you test whether it might be a potential source of problems.
The logging of the program itself, with its own error-handling and logging for tracking purposes.
There are some common sources of problems with cronjobs:
* The ABS...
How do I specify a pointer to an overloaded function?
...
@BenVoigt Hmm, I tested this on vs2010 and couldn't find a case where the static_cast wouldn't catch the problem at compile time. It gave a C2440 with "None of the functions with this name in scope match the target type". Can you clarify?
...
What is the use of “ref” for reference-type variables in C#?
...wap<T>(ref T x, ref T y) {
T t = x;
x = y;
y = t;
}
var test = new[] { "0", "1" };
Swap(ref test[0], ref test[1]);
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NVIDIA vs AMD: GPGPU performance
...tly AMD is about to release the new ZEN processor in which their burn mark tests are showing that at default settings it is comparable to Intel's top i7 processors. Their new technology is supposed to improve the more it works as it recognizes patterns of instructions. So I think most of their time ...
How to check if running in Cygwin, Mac or Linux?
...GW64_NT" ]; then
# Do something under 64 bits Windows NT platform
fi
Testing
Linux (Ubuntu 12.04 LTS, Kernel 3.2.0) tested OK.
OS X (10.6.8 Snow Leopard) tested OK.
Windows (Windows 7 64 bit) tested OK.
What I learned
Check for both opening and closing quotes.
Check for missing parenthes...