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Why does volatile exist?
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volatile is needed if you are reading from a spot in memory that, say, a completely separate process/device/whatever may write to.
I used to work with dual-port ram in a multiprocessor system in straight C. We used a hardware managed 16 bit value as a semaphore to know when th...
In Laravel, the best way to pass different types of flash messages in the session
...first app in Laravel and am trying to get my head around the session flash messages. As far as I'm aware in my controller action I can set a flash message either by going
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Sorting an ArrayList of objects using a custom sorting order
I am looking to implement a sort feature for my address book application.
11 Answers
1...
Should I URL-encode POST data?
...pe" is in the HTTP headers.
A value of "application/x-www-form-urlencoded" means that your POST body will need to be URL encoded just like a GET parameter string. A value of "multipart/form-data" means that you'll be using content delimiters and NOT url encoding the content.
This answer has a much ...
List directory in Go
... in the io/ioutil package. Per the docs:
ReadDir reads the directory named by dirname and returns a list of sorted directory entries.
The resulting slice contains os.FileInfo types, which provide the methods listed here. Here is a basic example that lists the name of everything in the current ...
Copy multiple files in Python
...s copied).
import os
import shutil
src_files = os.listdir(src)
for file_name in src_files:
full_file_name = os.path.join(src, file_name)
if os.path.isfile(full_file_name):
shutil.copy(full_file_name, dest)
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How do I make this file.sh executable via double click?
...To create a shell script that will execute in Terminal when you open it, name it with the “command” extension, e.g., file.command. By default, these are sent to Terminal, which will execute the file as a shell script.
You will also need to ensure the file is executable, e.g.:
chmod +x file.com...
how to specify local modules as npm package dependencies
... question ranks very high in web search results.
This feature was implemented in the version 2.0.0 of npm. For example:
{
"name": "baz",
"dependencies": {
"bar": "file:../foo/bar"
}
}
Any of the following paths are also valid:
../foo/bar
~/foo/bar
./foo/bar
/foo/bar
syncing ...
How exactly does the python any() function work?
...If you use any(lst) you see that lst is the iterable, which is a list of some items. If it contained [0, False, '', 0.0, [], {}, None] (which all have boolean values of False) then any(lst) would be False. If lst also contained any of the following [-1, True, "X", 0.00001] (all of which evaluate to ...
Suppress command line output
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Because error messages often go to stderr not stdout.
Change the invocation to this:
taskkill /im "test.exe" /f >nul 2>&1
and all will be better.
That works because stdout is file descriptor 1, and stderr is file descriptor ...