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Flattening a shallow list in Python [duplicate]
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An explicit loop that uses .extend method is the fastest solution according to this benchmark
– jfs
Apr 30 '14 at 2:02
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A generic error occurred in GDI+, JPEG Image to MemoryStream
... dst.Save(m, format);
var img = Image.FromStream(m);
//TEST
img.Save("C:\\test.jpg");
var bytes = PhotoEditor.ConvertImageToByteArray(img);
return img;
}
It appears that the memory stream that the object was created on has to be open at the time the obje...
Razor view engine, how to enter preprocessor(#if debug)
...e sense than conditional compilation for views and comes in handy for some testing scenarios. (See Tony Wall's comment below.)
Side note: NullReferenceException for HttpContext.Current
Alex Angas mentioned that they get a NullReferenceException with this solution, and a few people have upvoted i...
how to programmatically fake a touch event to a UIButton?
I'm writing some unit tests and, because of the nature of this particular app, it's important that I get as high up the UI chain as possible. So, what I'd like to do is programmatically trigger a button-press, as if the user had pressed the button in the GUI .
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Test whether string is a valid integer
...here. I'm extremely surprised none of the answers mention the simplest, fastest, most portable solution; the case statement.
case ${variable#[-+]} in
*[!0-9]* | '') echo Not a number ;;
* ) echo Valid number ;;
esac
The trimming of any sign before the comparison feels like a bit of a hack, bu...
How to get arguments with flags in Bash
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This is the idiom I usually use:
while test $# -gt 0; do
case "$1" in
-h|--help)
echo "$package - attempt to capture frames"
echo " "
echo "$package [options] application [arguments]"
echo " "
echo "options:"
echo "-h, --h...
Most efficient way to increment a Map value in Java
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Some test results
I've gotten a lot of good answers to this question--thanks folks--so I decided to run some tests and figure out which method is actually fastest. The five methods I tested are these:
the "ContainsKey" method t...
Backbone.js: get current route
...utes : {
"home" : "home",
"user(:/uid)" : "user",
"test" : "completelyDifferent"
},
home : function() {
// Home route
},
user : function(uid) {
// User route
},
// Gets the current route callback function name
// or current hash ...
Difference between fprintf, printf and sprintf?
...
You can also do very useful things with vsnprintf() function:
$ cat test.cc
#include <exception>
#include <stdarg.h>
#include <stdio.h>
struct exception_fmt : std::exception
{
exception_fmt(char const* fmt, ...) __attribute__ ((format(printf,2,3)));
char const* what...
Does C have a “foreach” loop construct?
...rgv[])
{
list_node list[] = {
{ .next = &list[1], .data = "test 1" },
{ .next = &list[2], .data = "test 2" },
{ .next = NULL, .data = "test 3" }
};
FOR_EACH(item, list)
puts((char *) item->data);
return 0;
}
...