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Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?

...tion: lazy var didBecomeActive: (Notification) -> Void = { [weak self] _ in // Do stuff } If you require the actual notification be included, just replace the _ with notification. Next, we set up the notification to observe for the app becoming active. func setupObserver() { _ = Not...
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How do PHP sessions work? (not “how are they used?”)

...on files are usually stored in, say, /tmp/ on the server, and named sess_{session_id} . I have been looking at the contents and cannot figure out how they really work. ...
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How do I integrate Ajax with Django applications?

... return HttpResponse('Hello World!') def home(request): return render_to_response('index.html', {'variable': 'world'}) index.html: <h1>Hello {{ variable }}, welcome to my awesome site</h1> urls.py: url(r'^hello/', 'myapp.views.hello'), url(r'^home/', 'myapp.views.home'), Th...
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Ruby: Easiest Way to Filter Hash Keys?

...with just the choices in it. choices = params.select { |key, value| key.to_s.match(/^choice\d+/) } or you can use delete_if and modify the existing Hash e.g. params.delete_if { |key, value| !key.to_s.match(/choice\d+/) } or if it is just the keys and not the values you want then you can do: p...
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How to create Java gradle project

...ild init plugin can be found here: gradle.org/docs/current/userguide/build_init_plugin.html – Paul Dec 19 '14 at 17:54 ...
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ASP.NET MVC Razor pass model to layout

...odel : ViewModelBase { } public abstract class ViewModelBase { } in the _Layout.cshtml: @model Models.ViewModelBase <!DOCTYPE html> <html> and so on... in the the Index (for example) method in the home controller: public ActionResult Index() { var model = new S...
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Create list of single item repeated N times

... mutable empty list, set, or dict, you should do something like this: list_of_lists = [[] for _ in columns] The underscore is simply a throwaway variable name in this context. If you only have the number, that would be: list_of_lists = [[] for _ in range(4)] The _ is not really special, but y...
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Node.js: printing to console without a trailing newline?

...ered May 27 '11 at 20:51 onteria_onteria_ 57.1k66 gold badges6363 silver badges6060 bronze badges ...
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How do I get the entity that represents the current user in Symfony2?

...* * @var Security */ private $security; public function __construct(Security $security) { $this->security = $security; } public function privatePage() : Response { $user = $this->security->getUser(); // null or UserInterface, if logged in ...
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AngularJS - How can I do a redirect with a full page load?

... For <a> tags: You need to stick target="_self" on your <a> tag There are three cases where AngularJS will perform a full page reload: Links that contain target element Example: <a href="/ext/link?a=b" target="_self">link</a> Absolute links that...