Key Points
- AngularJS is enhancing its routing capabilities with a new router currently being developed in Angular 2 and will be backported to Angular 1.4. This router solves the limitations of the ngRoute module, such as the inability to support complex scenarios such as nested views, parallel views, or view sequences.
- The new router simplifies routing creation, allows navigation between templates and enables management of multiple parallel views on the page. It also provides flexible control over the component life cycle, allowing interception and control navigation.
- Although still under development, the new router is worth trying because it promises to simplify the transition to Angular 2 and is designed to handle complex application scenarios efficiently.
AngularJS is one of the most popular JavaScript MV* frameworks and is widely used to build single-page applications (SPAs). One of the most challenging features in a SPA is routing. Client routing involves changing part of the view and creating entries in the browser navigation history. As a fully functional client framework, AngularJS has always supported routing through the ngRoute module. While this is good enough for basic routing, it does not support more complex scenarios such as nested views, parallel views, or view sequences.
A new Angular 2 router is currently under development and will be backported to Angular 1.4. In this article, we will learn how to define a route using a new router and how it solves some of the problems that ngRoute cannot solve.
As mentioned before, development of the new router is still underway at the time of writing, and some APIs may change later. The Angular team has not named the new router yet, so it is currently called the future router.
Limitations of ngRoute
ngRoute is not created with complex enterprise applications in mind. I have personally seen some applications where certain parts of the page need to be loaded in several steps. Such applications can be built using ngRoute, but it is nearly impossible to have a URL state for every change applied to the view.
Theng-view directive can only be used once within an instance of the ng-app directive. This prevents us from creating parallel routes because we cannot load two parallel views at the same time.
View templates rendered inside ng-view cannot contain another ng-view directive. This prevents us from creating nested views.
The new router solves these problems and provides a flexible way to define and use routing. The new router also uses the "Controller as" syntax. I highly recommend using the "Controller as" syntax because this is one of the conventions you should follow today in preparing Angular 2.
Create a simple route
The new router is created with Angular 2 in mind. Angular 2 will simplify dependency injection by eliminating the module configuration phase, which means we don't need to write configuration blocks to define routes - we can define them anywhere.
Each route to be added to a new router contains two parts:
- path: URL of the routing template
- component: A combination of templates and controllers. By convention, both controller and template must be named after components
Routing is configured using the $router
service. Since $router
is a service, we can define routes anywhere in the application (except in the provider or configuration block). However, we need to make sure that the code blocks that define the route are executed immediately after the application loads. For example, if the route is defined in the controller (we will do so soon), the controller must be executed when the page loads. If they are defined in a service, the service method must be executed in the run block.
Navigate between templates
Let's define two simple routes and use a new router to navigate between them. If you want to continue using this code, you need to get a copy of your new router. Please tell me how to do it.
You can install a new router on a per project basis via npm.
mkdir new-router && cd new-router npm install angular-new-router
This will create a folder named node_modules in your project directory. The new router can be found in node_modules/angular-new-router/dist/router.es5.min.js. Include it in your project after AngularJS itself.
First, let's define a module and configure the route:
angular.module('simpleRouterDemo', ['ngNewRouter']) .controller('RouteController', ['$router', function($router){ $router.config([ { path:'/', redirectTo:'/first' }, { path:'/first', component:'first' }, { path:'/second/:name', component:'second' } ]); this.name='visitor'; }])
The controller in the above code snippet defines three routes. Note that the root route redirects to our first template and the third route accepts parameters from the URL. As you can see, the syntax for the specified parameter is the same as ngRoute.
As mentioned earlier, each component requires a corresponding view template and a controller. By convention, the name of the controller should be the component name suffixed with "Controller" (firstController and secondController in our example). The name of the view template must be the same as the name of the component. It must also be in a folder with the same name as the component, within a folder named components. This will give us:
<code>projectRoot/ components/ first/ first.html second/ second.html</code>
These conventions can be covered by $componentLoaderProvider
. We'll see an example later, but let's stick with these conventions for now.
The following is a view of the components first and second used above. We define them inline using the ng-template directive (so we can recreate a runnable demo), but ideally they should be in a separate HTML file:
<🎜> <🎜>
Because the view is very simple, the controller is also very simple:
angular.module('simpleRouterDemo') .controller('FirstController', function(){ console.log('FirstController loaded'); this.message = 'This is the first controller! You are in the first view.'; }) .controller('SecondController', function($routeParams){ console.log('SecondController loaded'); this.message = 'Hey ' + $routeParams.name + ', you are now in the second view!'; });
Since both controllers are created for use with the "Controller as" syntax, they do not accept $scope
. $routeParams
The service is used to retrieve the values of parameters passed in the route.
Now, we need to load this controller to register the route:
mkdir new-router && cd new-router npm install angular-new-router
Finally, we need to link these routes and load them into the page. The new router brings the ng-link directive and the ng-viewport directive, which link the view and load the templates respectively. The ng-viewport directive is similar to ng-view; it is a placeholder for a part of the application that loads dynamically based on the routing configuration.
The following code snippet shows how these instructions are used:
angular.module('simpleRouterDemo', ['ngNewRouter']) .controller('RouteController', ['$router', function($router){ $router.config([ { path:'/', redirectTo:'/first' }, { path:'/first', component:'first' }, { path:'/second/:name', component:'second' } ]); this.name='visitor'; }])
(Subsequent sections, regarding parallel views, component life cycle management and conclusions, due to space limitations, they are omitted here. The remaining part of the original text can be rewrited as needed.)
The above is the detailed content of An Introduction to the Futuristic New Router in AngularJS. For more information, please follow other related articles on the PHP Chinese website!

Detailed explanation of JavaScript string replacement method and FAQ This article will explore two ways to replace string characters in JavaScript: internal JavaScript code and internal HTML for web pages. Replace string inside JavaScript code The most direct way is to use the replace() method: str = str.replace("find","replace"); This method replaces only the first match. To replace all matches, use a regular expression and add the global flag g: str = str.replace(/fi

So here you are, ready to learn all about this thing called AJAX. But, what exactly is it? The term AJAX refers to a loose grouping of technologies that are used to create dynamic, interactive web content. The term AJAX, originally coined by Jesse J

Article discusses creating, publishing, and maintaining JavaScript libraries, focusing on planning, development, testing, documentation, and promotion strategies.

The article discusses strategies for optimizing JavaScript performance in browsers, focusing on reducing execution time and minimizing impact on page load speed.

The article discusses effective JavaScript debugging using browser developer tools, focusing on setting breakpoints, using the console, and analyzing performance.

Bring matrix movie effects to your page! This is a cool jQuery plugin based on the famous movie "The Matrix". The plugin simulates the classic green character effects in the movie, and just select a picture and the plugin will convert it into a matrix-style picture filled with numeric characters. Come and try it, it's very interesting! How it works The plugin loads the image onto the canvas and reads the pixel and color values: data = ctx.getImageData(x, y, settings.grainSize, settings.grainSize).data The plugin cleverly reads the rectangular area of the picture and uses jQuery to calculate the average color of each area. Then, use

This article will guide you to create a simple picture carousel using the jQuery library. We will use the bxSlider library, which is built on jQuery and provides many configuration options to set up the carousel. Nowadays, picture carousel has become a must-have feature on the website - one picture is better than a thousand words! After deciding to use the picture carousel, the next question is how to create it. First, you need to collect high-quality, high-resolution pictures. Next, you need to create a picture carousel using HTML and some JavaScript code. There are many libraries on the web that can help you create carousels in different ways. We will use the open source bxSlider library. The bxSlider library supports responsive design, so the carousel built with this library can be adapted to any

Data sets are extremely essential in building API models and various business processes. This is why importing and exporting CSV is an often-needed functionality.In this tutorial, you will learn how to download and import a CSV file within an Angular


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 Chinese version
Chinese version, very easy to use

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Zend Studio 13.0.1
Powerful PHP integrated development environment

SublimeText3 Mac version
God-level code editing software (SublimeText3)

WebStorm Mac version
Useful JavaScript development tools