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How do I parse JSON with Objective-C?
...f the OS X v10.7 and iOS 5 launches, probably the first thing to recommend now is NSJSONSerialization, Apple's supplied JSON parser. Use third-party options only as a fallback if you find that class unavailable at runtime.
So, for example:
NSData *returnedData = ...JSON data, probably from a web r...
How to perform runtime type checking in Dart?
...c isn't exactly friendly to a casual reader, so the best description right now seems to be http://www.dartlang.org/articles/optional-types/.
Here's an example:
class Foo { }
main() {
var foo = new Foo();
if (foo is Foo) {
print("it's a foo!");
}
}
...
Why does C# have break if it's not optional? [duplicate]
...
And now, 7 tears after this was written we see how dumb this decision was. Now we are introducing pattern matching, a hot-new concept that they decide to co-opt switch syntax for and is now bogged down by a decision made to "not ...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
...
NOTE: PyPy is more mature and better supported now than it was in 2013, when this question was asked. Avoid drawing conclusions from out-of-date information.
PyPy, as others have been quick to mention, has tenuous support for C extensions. It has support, but typical...
Determine when a ViewPager changes pages
...
ViewPager.setOnPageChangeListener is deprecated now. You now need to use ViewPager.addOnPageChangeListener instead.
for example,
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, fl...
Upload files with HTTPWebrequest (multipart/form-data)
... url));
string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(url);
wr.ContentType = "multipa...
Visual Studio loading symbols
I'm working on a ColdFusion project for a while now, and Visual Studio started to behave strange for me at least.
16 Answ...
How do I get the coordinates of a mouse click on a canvas element?
...Dom access are done on each click / move. And getBoundingClientRect exists now, and is more elegant.
– GameAlchemist
May 13 '14 at 8:28
...
Should I use Vagrant or Docker for creating an isolated environment? [closed]
...ac and Windows, but since docker 0.7, any linux distro works fine. If you know of a non-working one, please let me know. Also, unless you have a Mac or Windows stack (which is unlikely but can happen), you do not want to run Docker anywhere but on linux. The docker client works fine on Mac, should w...
Xcode doesn't see my iOS device but iTunes does
...
Select Window ➜ Organizer in Xcode.
Now under Devices, select your device.
If it is not ready for development then click use for development.
If above doesn't solve your problem then from your project settings, set deployment target to one which your app is dev...