Tutorial by Examples: g

We can use the Service Container as a Registry by binding an instance of an object in it and get it back when we'll need it: // Create an instance. $john = new User('John'); // Bind it to the service container. App::instance('the-user', $john); // ...somewhere and/or in another class... ...

We can bind a class as a Singleton: public function register() { App::singleton('my-database', function() { return new Database(); }); } This way, the first time an instance of 'my-database' will be requested to the service container, a new instance will be created. Al...

Solution 1: $('#parent').prepend($('#child')); Solution 2: $('#child').prependTo($('#parent')); Both solutions are prepending the element #child (adding at the beginning) to the element #parent. Before: <div id="parent"> <span>other content</span> </di...

Solution 1: $('#parent').append($('#child')); Solution 2: $('#child').appendTo($('#parent')); Both solutions are appending the element #child (adding at the end) to the element #parent. Before: <div id="parent"> <span>other content</span> </div> <d...

chrome.runtime.getManifest() returns the extension's manifest in a form of a parsed object. This method works both on content scripts and all extension pages, it requires no permissions, Example, obtaining the extension's version string: var version = chrome.runtime.getManifest().version;

Using the Control.Invoke() method you may move the execution of a method or function from a background thread to the thread that the control was created on, which is usually the UI (User Interface) thread. By doing so your code will be queued to run on the control's thread instead, which removes the...

This method will work on modern versions of Arch, CentOS, CoreOS, Debian, Fedora, Mageia, openSUSE, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Ubuntu, and others. This wide applicability makes it an ideal as a first approach, with fallback to other methods if you need to also identify o...

A namespace binding (special xmlns or xmlns:... attribute) is in scope for all the descendants of the enclosing element, including this element. <?xml version="1.0"?> <root> <my:element xmlns:my="http://www.example.com/ns1"> <!-- here, the prefix my...

To cancel a call to requestAnimationFrame, you need the id it returned from when it was last called. This is the parameter you use for cancelAnimationFrame. The following example starts some hypothetical animation then pauses it after one second. // stores the id returned from each call to reques...

Addition + and subtraction - operations can be used to combine delegate instances. The delegate contains a list of the assigned delegates. using System; using System.Reflection; using System.Reflection.Emit; namespace DelegatesExample { class MainClass { private delegate void MyD...

You can easily add a breakpoint to your code by clicking on the grey column to the left of the line of your VBA code where you want execution to stop. A red dot appears in the column and the breakpoint code is also highlighted in red. You can add multiple breakpoints throughout your code and resumi...

This example will show you how to quickly get a hello world Aurelia application up and running using the Aurelia CLI. Prerequisites The Aurelia CLI is a Node.js based application, so make sure you install it first before proceeding. You will need Node.js 4.4.7 or later. You will also need a Git c...

A commonly used CSS/Javascript library is Bootstrap. To install it into your Aurelia CLI driven application first you need to install it using Npm. npm install bootstrap --save Because Bootstrap has a hard dependency on jQuery, we need to make sure we also have jQuery installed: npm install jqu...

While Value Converters can be comprised of either a toView or fromView method, in the below example we will be creating a basic Value Converter which just uses the toView method which accepts the value being sent to the view as the first argument. to-uppercase.js export class ToUppercaseValueConve...

A bi-directional value converter utilizes two methods in your Value Converter class: toView and fromView these methods are aptly named to signify which direction the data is flowing. In our example we will be creating a prepend Value Converter which will make sure that an amount entered in our app ...

A Value Converter can be used alongside other value converters and you can infinitely chain them using the | pipe separator. ${myString | toUppercase | removeCharacters:'&,%,-,+' | limitTo:25} The above theoretical example firstly applies toUppercase which capitalizes our string. Then it app...

When you use or, it will either return the first value in the expression if it's true, else it will blindly return the second value. I.e. or is equivalent to: def or_(a, b): if a: return a else: return b For and, it will return its first value if it's false, else it r...

Create project using STS (Spring Starter Project) or Spring Initializr (at https://start.spring.io ). Add a Web Dependency in your pom.xml: <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId&...

ng-repeat is a built in directive in Angular which lets you iterate an array or an object and gives you the ability to repeat an element once for each item in the collection. ng-repeat an array <ul> <li ng-repeat="item in itemCollection"> {{item.Name}} </...

$scope.$emit Using $scope.$emit will fire an event name upwards through the scope hierarchy and notify to the $scope.The event life cycle starts at the scope on which $emit was called. Working wireframe : $scope.$broadcast Using $scope.$broadcast will fire an event down the $scope. We can list...