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What is the difference between a Docker image and a container?
... I guess what I'm stuck on is how images run (I use boot2docker on Windows). Why do we create images for applications, say mysql? At this point, how is mysql even running? Don't I need to have a Linux image to run mysql on top of?
– Kenny Worden
Feb 17 ...
How do I detect unsigned integer multiply overflow?
...quivalents for signed operations or multiplications.
Otherwise, Clang for Windows is now production-ready (good enough for Chrome), so that could be an option, too.
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What does “./bin/www” do in Express 4.x?
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On Windows, use this command:
set DEBUG=myapp:* & npm start
Then load http://localhost:3000/ in your browser to access the app.
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How to change the name of a Django app?
...it also renames comments too which you can exclude in the refactor preview window it will show you.
And you'll have to rename OldNameConfig(AppConfig): in apps.py of your renamed app in addition.
If you do not want to lose data of your database, you'll have to manually do it with query in database ...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
... 2GB RAM, 1.2M concurrent connections. The only issues I had were with the Windows boxes in the test work; these regularly went belly up while attempting to DoS the Intel Atom box...
– Klaws
Sep 11 '19 at 11:11
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What is the difference between concurrency, parallelism and asynchronous methods?
...a bit like chatting with different people through various IM windows; although you’re actually switching back and forth, the net result is that you’re having multiple conversations at the same time.
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difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
... be raised from anywhere with in your application and is not attached to a window.
Activity context is attached to the Activity's life-cycle and can be destroyed if the activity's onDestroy() is raised. If you want to launch a new activity, you must need to use activity's context in its Intent so t...
What does addChildViewController actually do?
... When they get called is associated with when views move in and out of the window hierarchy.
So it seems that the call to addChildViewController: does very little. The side effects of the call are the important part. They come from the parentViewController and childViewControllers relationships. H...
How to use an existing database with an Android application [duplicate]
... private static String TAG = "DataBaseHelper"; // Tag just for the LogCat window
private static String DB_NAME ="YourDbName"; // Database name
private static int DB_VERSION = 1; // Database version
private final File DB_FILE;
private SQLiteDatabase mDataBase;
private final Conte...
Reading file contents on the client-side in javascript in various browsers
...t;
}
function onChooseFile(event, onLoadFileHandler) {
if (typeof window.FileReader !== 'function')
throw ("The file API isn't supported on this browser.");
let input = event.target;
if (!input)
throw ("The browser does not properly implement the event object");
...