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How to design a multi-user ajax web application to be concurrently safe
... at least one value field, unique- and a version-id
javascript client gets started, requesting to "watch" the found artifacts history starting from their found versions (older changes are not interesting)
Server process notes the request and continuously checks and/or sends the history
History entri...
Run two async tasks in parallel and collect results in .NET 4.5
...blic static async void GoAsync()
{
Console.WriteLine("Starting");
var task1 = Sleep(5000);
var task2 = Sleep(3000);
int[] result = await Task.WhenAll(task1, task2);
Console.WriteLine("Slept for a total of " + result.Sum() + " ms...
Cron jobs and random times, within given hours
... exits. Also, since it uses a random number of minutes (not seconds), the start times aren't quite as random as they could be. But $RANDOM only goes up to 32,767, and there are 50,400 seconds between 9am and 11pm, it'd be a little more complicated to randomize the seconds as well. Finally, since ...
How to close a Java Swing application from the code
...00); //first delay 2 seconds
timer.setRepeats(false);
timer.start();
}
public void windowClosed(WindowEvent e) {
//This will only be seen on standard output.
displayMessage("WindowListener method called: windowClosed.");
}
...
Difference between CSS3 transitions' ease-in and ease-out
...d linear, or you can specify your own using cubic-bezier().
ease-in will start the animation slowly, and finish at full speed.
ease-out will start the animation at full speed, then finish slowly.
ease-in-out will start slowly, be fastest at the middle of the animation, then finish slowly.
ease is ...
How is a tag different from a branch in Git? Which should I use, here?
... No one here has mentioned it yet but you can use a tag as the point to start a branch: git checkout -b <branch name> <tag name>
– user477063
Dec 8 '12 at 23:45
...
Oracle TNS names not showing when adding new connection to SQL Developer
... the Windows command line:
echo %TNS_ADMIN%
From linux:
echo $TNS_ADMIN
Restart SQL Developer
Now in SQL Developer right click on Connections and select New Connection.... Select TNS as connection type in the drop down box. Your entries from tnsnames.ora should now display here.
...
How to host a Node.Js application in shared hosting [closed]
... . $file . ' >/dev/null 2>&1 & echo $!');
//Wait for node to start up
usleep(500000);
//Connect to node server using cURL
$curl = curl_init('http://127.0.0.1:49999/');
curl_setopt($curl, CURLOPT_HEADER, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
//Get the full response
$resp = ...
How can I troubleshoot my Perl CGI script?
I have a Perl script that isn't working and I don't know how to start narrowing down the problem. What can I do?
8 Answers
...
Print second last column/field in awk
...o splitting on whitespace
e execute the perl code
The @F autosplit array starts at index [0] while awk fields start with $1.
$#F is the number of elements in @F
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