Tutorial by Examples: control

Controller code: angular.module('myModule', []) .controller('myController', function($scope) { $scope.num = 2; $scope.doSomething = function() { $scope.num += 2; } }); The test: describe('myController', function() { var $scope; beforeEach(function() { modu...

if we want to change the Controllers directory we need: Move and/or rename the default Controllers directory where we want it. For example from app/Http/Controllers to app/Controllers Update all the namespaces of the files inside the Controllers folder, making they adhere to the new path, re...

Init array of view controllers which will be managed by UIPageViewController. Add a base view controller class which has property identifier which will be used to identify view controllers when working with UIPageViewController data source methods. Let the view controllers to inherit from that bas...

When the view controller is presented within a tab bar controller, you can access the tab bar controller like this: Swift let tabBarController = viewController.tabBarController Objective-C UITabBarController *tabBarController = self.tabBarController; When the view controller is part on an n...

namespace App\Controller; class PostsController extends AppController { public function initialize(){ parent::initialize(); // code that you want to run before every action } public function view($id) { //Your code here } }

The beforeFilter() method executes before any other method executes in the controller. First use the Event namespace before defining the class in your controller file. use Cake\Event\Event; In your controller, add the beforeFilter() method as shown below. public function beforeFilter(Event $ev...

By default CakePHP loads the related model in the controller. In order to load another model in the controller, use the loadModel() method: $this->loadModel('Articles'); or load on the fly $table = TableRegistry::get('Articles'); $table->find();

When inheriting from base Controller class provided by the framework, you can use the convenience method ViewComponent() to return a view component from the action: public IActionResult GetMyComponent() { return ViewComponent("Login", new { param1 = "foo", param2 = 42 }); ...

package org.bookmytickets.controller; import java.util.List; import org.bookmytickets.model.Customer; import org.bookmytickets.repository.CustomerRepository; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.PathVariable; import o...

Callbacks are often used to provide error handling. This is a form of control flow branching, where some instructions are executed only when an error occurs: const expected = true; function compare(actual, success, failure) { if (actual === expected) { success(); } else { failure...

As defined in the AngularJS Documentation When a Controller is attached to the DOM via the ng-controller directive, Angular will instantiate a new Controller object, using the specified Controller's constructor function. A new child scope will be created and made available as an injectable par...

The Controller we have made can be instantiated and used using controller as Syntax. That's because we have put variable directly on the controller class and not on the $scope. Using controller as someName is to seperate the controller from $scope itself.So, there is no need of injecting $scope as ...

we can create a new controller with rails g controller command. $ bin/rails generate controller controller_name The controller generator is expecting parameters in the form of generate controller ControllerName action1 action2. The following creates a Greetings controller with an action of hell...

//Swift let initialScreen = storyboard.instantiateInitialViewController() //Objective-c UIViewController *initailScreen = [storyboard instantiateInitialViewController];

//Swift let viewController = storyboard.instantiateViewControllerWithIdentifier("identifier") //Objective-c UIViewController *viewController = [storyboard instantiateViewControllerWithIdentifier:@"identifier"];

When a user press F1 on a control or click on Help button of form (?) and then clicks on a control the HelpRequested event will be raised. You can handle this event to provide custom action when user requests help for controls or form. The HelpRequested supports bubble up mechanism. It fires for y...

You will have to inject $filter: angular .module('filters', []) .filter('percentage', function($filter) { return function (input) { return $filter('number')(input * 100) + ' %'; }; });

This is the basic HTML file that can be used as a boilerplate when starting a project. This boilerplate uses orbit controls with damping (camera that can move around an object with deceleration effect) and creates a spinning cube. <!DOCTYPE html> <html> <head> <t...

The $http service is a function which generates an HTTP request and returns a promise. General Usage // Simple GET request example: $http({ method: 'GET', url: '/someUrl' }).then(function successCallback(response) { // this callback will be called asynchronously // when the respo...

While there are many different control sequences for io:format and io_lib:format, most of the time you'll use only three different ones: ~s, ~p and ~w. ~s The ~s is for strings. It prints strings, binaries and atoms. (Anything else will cause a badarg error.) It doesn't quote or escape anything...