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How does bash tab completion work?
...rary, as already mentioned by fixje, manages the command line editing, and calls back to bash when tab is pressed, to enable completion. Bash then gives (see next point) a list of possible completions, and readline inserts as much characters as are identified unambiguously by the characters already ...
to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...to animate a ball moving across the screen, it would be a terrible idea to call setNeedsDisplay on a view 60 times per second. So, if you have sub-components of your view that need to be individually animated, each component should be a separate layer.
The other problem is that when you don't do cu...
How can I verify if a Windows Service is running
... implemented as a Windows Service. When the device boots, this service typically takes some time to start. I'd like to check, from my code, if the service is running. How can I accomplish this?
...
How to revert to origin's master branch's version of file
...gahooa It should probably be git checkout -- filename, what if the file is called "master", then you would get a behaviour that was not intended.
– user2602152
Mar 19 '15 at 12:44
...
Configure IIS Express for external access to VS2010 project
I am developing a project in VS2010 and am able to view my site locally via IIS Express. I would like to enable external access over the network.
...
jQuery Ajax File Upload
...don't have to wait that long any more because all IE only has a 22% world wide market share and 27% in the U.S. and dropping fast. Chances are it is people over 70 years old. So rather then IE dictating what developers have to do IE will either have to shape up or get out of the race.
...
Entity Framework: table without primary key
...s shown in this answer) you can tag a modelBuilder.Entity<T>() chain-call with .HasDatabaseGeneratedOption(DatabaseGeneratedOption.None) for those oh-so-special keys that aren't natural or composite, but able to be relied upon to be unique (usually, anyways.)
– Andrew Gra...
How do you effectively model inheritance in a database?
...ly the different elements.
So for example:
class Person {
public int ID;
public string FirstName;
public string LastName;
}
class Employee : Person {
public DateTime StartDate;
}
Would result in tables like:
table Person
------------
int id (PK)
string firstname
string lastname...
How to delete all Annotations on a MKMapView
... to blink on the map, due to removing
the pin then adding it back
- (void)removeAllPinsButUserLocation1
{
id userLocation = [mapView userLocation];
[mapView removeAnnotations:[mapView annotations]];
if ( userLocation != nil ) {
[mapView addAnnotation:userLocation]; // will ...
Difference between doseq and for in Clojure
...ln x))
At the REPL, this will generally do what you want, but that's basically a coincidence: the REPL forces the lazy sequence produced by for, causing the printlns to happen. In a non-interactive environment, nothing will ever be printed. You can see this in action by comparing the results of
u...