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Using Node.js only vs. using Node.js with Apache/Nginx
...n server to serve static files as so many (every?) competing technologies (PHP, Ruby, Python, etc) require a web server like HTTPD or Nginx in front of the application server(s).
Every objective reason I have ever read against serving static files with Node revolves around the idea of using what yo...
SourceKitService Terminated
...or add it to an existing one. As soon as the source contains one extension block, it will crash. This happens even on newly created projects.
My "solution" is to avoid extension in the sources I'm currently working on. I comment out the end of a class block and the beginning of the extension block....
Expand a div to fill the remaining width
...ery easy, but not at all obvious. You have to trigger something called a "block formatting context" (BFC), which interacts with floats in a specific way.
Just take that second div, remove the float, and give it overflow:hidden instead. Any overflow value other than visible makes the block it's se...
Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previ
...
If you have a TRY/CATCH block then the likely cause is that you are catching a transaction abort exception and continue. In the CATCH block you must always check the XACT_STATE() and handle appropriate aborted and uncommitable (doomed) transactions....
CSS3 background image transition
...pacity attribute to this and set it to 0.
#facebook a {
display:inline-block;
background:url(images/social) no-repeat 0px -30px;
opacity:0;
}
Now all you need is "opacity" under "a:hover" and set this to 1.
#facebook a:hover {
opacity:1;
}
Add the opacity transition attributes for ...
How to wait for a BackgroundWorker to cancel?
...id Cancel()
{
worker.CancelAsync();
_resetEvent.WaitOne(); // will block until _resetEvent.Set() call made
}
void worker_DoWork(object sender, DoWorkEventArgs e)
{
while(!e.Cancel)
{
// do something
}
_resetEvent.Set(); // signal that worker is done
}
...
Is it a bad practice to catch Throwable?
...lt, user did not enter valid number
}
Now, let's say that getUserInput() blocks for a while, and another thread stops your thread in the worst possible way ( it calls thread.stop() ). Your catch block will catch a ThreadDeath Error. This is super bad. The behavior of your code after catching th...
What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
...oncurrent modification of the Map from several threads without the need to block them. Collections.synchronizedMap(map) creates a blocking Map which will degrade performance, albeit ensure consistency (if used properly).
Use the second option if you need to ensure data consistency, and each thread ...
throwing exceptions out of a destructor
...ck unwinding (i.e., handling some other throw but not having found a catch block for it yet) in which case std::terminate (not abort) is called instead of raising a (new) exception (or continuing the stack unwinding).
– Marc van Leeuwen
Jun 6 '16 at 9:04
...
Python Progress Bar
... progress >= 1:
progress = 1
status = "Done...\r\n"
block = int(round(barLength*progress))
text = "\rPercent: [{0}] {1}% {2}".format( "#"*block + "-"*(barLength-block), progress*100, status)
sys.stdout.write(text)
sys.stdout.flush()
# update_progress test script
...