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What is std::promise?
I'm fairly familiar with C++11's std::thread , std::async and std::future components (e.g. see this answer ), which are straight-forward.
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How do Third-Party “tracking cookies” work?
...rd-party tracking cookies work, but am still very confused.
I don't understand how if I visit Website A (a normal website with ads) how Website B (an advertising website) can assign my computer an ID, and then figure out that I was on website A, and other websites after it that have its ads.
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Regex doesn't work in String.matches()
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Welcome to Java's misnamed .matches() method... It tries and matches ALL the input. Unfortunately, other languages have followed suit :(
If you want to see if the regex matches an input text, use a Pattern, a Matcher and the .find() method of the matcher:
Pattern p = Pattern.comp...
Google Chrome Extensions - Can't load local images with CSS
... @Salem It would be inconvenient to develop as unpacked extension id and uploaded to the gallery one have different ids. It's not the end of the world, just inconvenience and sort of bad practice, just like hardcoding absolute file pathes in the code for example.
– serg
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p vs puts in Ruby
Is there any difference between p and puts in Ruby?
7 Answers
7
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Catch Ctrl-C in C
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With a signal handler.
Here is a simple example flipping a bool used in main():
#include <signal.h>
static volatile int keepRunning = 1;
void intHandler(int dummy) {
keepRunning = 0;
}
// ...
int main(void) {
signal(SIG...
Finding the path of the program that will execute from the command line in Windows
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Use the where command. The first result in the list is the one that will execute.
C:\> where notepad
C:\Windows\System32\notepad.exe
C:\Windows\notepad.exe
According to this blog post, where.exe is included with Windows Server 2003 and...
Show or hide element in React
I am messing around with React.js for the first time and cannot find a way to show or hide something on a page via click event. I am not loading any other library to the page, so I am looking for some native way using the React library. This is what I have so far. I would like to show the results...
How to upload a project to Github
...ll the below steps redundant.
You can also use sourcetree to get both git and mercurial setup on Windows.
Here is how you would do it in Windows:
If you don't have git installed, see this article on how to set it up.
Open up a Windows command prompt.
Change into the directory where your source...
Best way to convert string to bytes in Python 3?
...Sequence Types, as well as most methods that the bytes type has, see Bytes and Byte Array Methods.
The optional source parameter can be used to initialize the array in a few different ways:
If it is a string, you must also give the encoding (and optionally, errors) parameters; bytearray() then conve...