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CSS: Animation vs. Transition
...animation, just one that is performed between two distinct states - i.e. a start state and an end state. Like a drawer menu, the start state could be open and the end state could be closed, or vice versa.
If you want to perform something that does not specifically involve a start state and an end s...
What is an example of the simplest possible Socket.io example?
... for anyone to consult the excellent chat example on the Socket.IO getting started page. The API has been quite simplified since I provided this answer. That being said, here is the original answer updated small-small for the newer API.
Just because I feel nice today:
index.html
<!doctype html...
Logging best practices [closed]
...
e.g. The first digit can detail the general class: 1xxx can be used for 'Start' operations, 2xxx for normal behaviour, 3xxx for activity tracing, 4xxx for warnings, 5xxx for errors, 8xxx for 'Stop' operations, 9xxx for fatal errors, etc.
The second digit can detail the area, e.g. 21xx for databas...
catch exception that is thrown in different thread
...ith(ExceptionHandler, TaskContinuationOptions.OnlyOnFaulted);
task.Start();
Console.ReadLine();
}
static int Test()
{
throw new Exception();
}
static void ExceptionHandler(Task<int> task)
{
var exception = task.Exception;
Consol...
pip installing in global site-packages instead of virtualenv
... similarly-named test project (I had that problem, and have no idea how it started. My suspicion is running multiple virtualenvs at the same time).
If none of this works, a temporary solution may be to, as Joe Holloway said,
Just run the virtualenv's pip with its full path (i.e. don't rely on s...
Server is already running in Rails
When I am starting rails server using rails s command it is showing A server is already running. Check C:/Sites/folder/Pids/Server.pids
...
What are the dangers when creating a thread with a stack size of 50x the default?
...e bugs. There is a counter-measure against this in later jitters, I think starting at .NET 4.0, where the jitter generates code to put a "cookie" on the stack frame and checks if it is still intact when the method returns. Instant crash to the desktop without any way to intercept or report the mis...
Android: AsyncTask vs Service
... In the example above of fetching data when a button is pressed, you could start a service, let it fetch the data, and then stop it, but this is inefficient. It is far faster to use an AsyncTask that will run once, return the data, and be done.
If you need to be continually doing something in the b...
What is the simplest and most robust way to get the user's current location on Android?
...me may be disabled in application manifest.
If any provider is available I start location listeners and timeout timer. It's 20 seconds in my example, may not be enough for GPS so you can enlarge it.
If I get update from location listener I use the provided value. I stop listeners and timer.
If I don...
A cron job for rails: best practices?
...ler
for frequent tasks (esp. where you want to avoid the Rails environment startup cost) my preferred approach is to use system cron to call a script that will either (a) poke a secure/private webhook API to invoke the required task in the background or (b) directly enqueue a task on your queuing sy...