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Easiest way to detect Internet connection on iOS?
...ample on how to determine host reachability, reachability by WiFi, by WWAN etc. For a very simply check of network reachability, you can do something like this
Reachability *networkReachability = [Reachability reachabilityForInternetConnection];
NetworkStatus networkStatus = [networkReachabilit...
Undo git reset --hard with uncommitted files in the staging area
...e of problems - --cached should be --cache, and I found that it didn't actually create the .git/lost-found directory. However, the following steps worked for me:
git fsck --cache --unreachable $(git for-each-ref --format="%(objectname)")
That should output all objects in the object database that...
AngularJS browser autofill workaround by using a directive
...user's input. Also, 3 seconds is probably too long. You shouldn't have to call $apply() in a $timeout, BTW, it should queue a $digest for you automatically.
The real catch: Will your browser beat Angular to execution? What about my browser?
This is probably an unwinnable war, which is why Angular ...
adding multiple entries to a HashMap at once in one statement
... 2016) as follow:
Map<String, Integer> cities = Map.of("Brussels", 1_139000, "Cardiff", 341_000);
The var-args case for Map is a little bit harder, you need to have both keys and values, but in Java, methods can’t have two var-args parameters. So the general case is handled by taking a va...
What are the differences between Clojure, Scheme/Racket and Common Lisp?
...sp), Scheme has some modern implementations (Racket, Chicken, Chez Scheme, etc.), and Clojure was created relatively recently
Common Lisp has a built-in OO system, though it's quite different from other OO systems you might have used. Notably, it is not enforced--you don't have to write OO code.
The...
Is there some way to PUSH data from web server to browser?
...
Yes, what you're looking for is COMET http://en.wikipedia.org/wiki/Comet_(programming). Other good Google terms to search for are AJAX-push and reverse-ajax.
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Git submodule add: “a git directory is found locally” issue
... git submodule commands and rm all the other directories, pushes to master etc... the directory didn't exist and there was no reason for the cache. Turns out in .git/modules that is where this error was lying.
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Why is it bad style to `rescue Exception => e` in Ruby?
... - because the airbag didn't inflate, you're probably hurt (getting fired, etc).
But wait! There's more reasons why you might want to use rescue Exception => e!
Let's say you're that car, and you want to make sure the airbag inflates if the car is exceeding its safe stopping momentum.
begin
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GetHashCode Guidelines in C#
...ld be immutable. (Just like they are in the .NET framework, string, Date, etc... are all immutable objects).
Another thing that comes in mind:
During which 'session' (I don't know really how I should call this) should 'GetHashCode' return a constant value.
Suppose you open up your application, lo...
Rails 3 - can't install pg gem
When I try to run bundle (bundle install), I all the time get
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