First knowledge of ANGULAR2Writing a Angular2 Hello World app is fairly simple and goes in three steps:1. Introduction of ANGULAR2 predefined types1 Import {component,view,bootstrap} from "Angular2/angular2";Import is a ES6 keyword used to introduce a type definition from a
. 2. Fast-changing webin terms of language, ECMASCRIPT6 's standards have been completed, which means that browsers will soon support new features such as modules, classes, lambda expressions, generator, and so on, which will significantly change the development experience of JavaScript. In terms of development patterns, Web Components will also be implemented quickly. However, existing frameworks, including angular1.x support for Web Components, are not good enough. 3. Mobilethink about 5 years
Angular-cli
Speaking of the CLI everyone is not unfamiliar, every frame will have a corresponding CLI, commonly known as scaffolding. ANGULAR2 itself provides a starter project Angular2-quickstart, I tried it, and found that it was not very good, and that most of the other extensions needed to be installed on their own, then looked at the ANGULAR-CLI deployment is simple and easy to use, but also provides
been very difficult.2. Fast-changing WebIn terms of language, ECMASCRIPT6 's standards have been completed, which means that browsers will soon support new features such as modules, classes, lambda expressions, generator, and so on, which will significantly change the development experience of JavaScript.In terms of development patterns, Web Components will also be implemented quickly. However, existing frameworks, including angular1.x support for Web Components, are not good enough.3. MobileTh
be used in the components of this module. For example, after the introduction of Commonmodule can use Ngif, ngfor and other instructions.
Exports: Used to control which internal members are exposed to external use. Importing a module does not mean that the public members exposed by the module imported into this module are automatically imported. Unless the imported module writes its internal imported module to exports.
Bootstrap: Usually the ro
Angular2 a modular view of Web applications, a Web application developed using ANGULAR2, is a component tree. Components are broadly divided into two categories: a generic component such as list, table, and universal, a business component designed for business development. Most of the time in actual development we need to deal with business components. For spa applications, a common problem is how to contro
Objective:This series introduces the basic concepts of zone.js and ANGULAR2 in the previous two articles. Then for NG2 's study, the official tour of Heroes began . The following refining and personal understanding, of course, there will be incorrect places, please correct me. Interested friends, can start their own ng2 tour, and then combined with this article to understand.NG2 configuration is troublesome, arbitrary introduction package may lead to
interop Wijmo package to the vendor path. Copy the D.ts file from interop to the newly created folder. Finally, copy the underlying style. Return to Visual Studio, and then add all the styles and scripts to the project.
Now that the project has been created, add the app component to the SRC folder. Add a new Typescript class and component template. Import a small number of angular models into our components and create a new TS class that is also imported. Import the Wijmo input control. First,
Angular2 and TypescriptOriginal link: Https://www.infoq.com/articles/Angular2-TypeScript-High-Level-OverviewYakov Fain Posted on APR 26, 2016--------------------------------------------------------------------------------------------------------------- ---------------Angularjs is currently the most popular JavaScript framework available for creating Web applications. And now
1. ModularComponent-based programming is a trend in web development, and ANGULAR2 provides an efficient and simple way to develop components so that program development pays more attention to the implementation of business logic, without caring about how to load components and modules, how to reference and dependency injection implementations, and so on.As shown in the following code, ANGULAR2 provides anno
On the internet to find a lot of textbooks are not search for this part of the type, self-test to write the tutorial.Scenario Description: The project needs to use bootstrap, it is well known that Bootstrap has no time-date control, need to use a third-party control, I am afraid of how to use third-party controls in Angular2, my project uses ANGULAR-CLI build.Res
(appmodule);main.ts// AngularImport ' @angular/platform-browser '@angular/platform-browser-dynamic' @ angular/core ' @angular/common '; // RxJSImport ' reflect-metadata' RxJS' Zone.js/dist/zone '; // Other Vendors For example JQuery, Lodash or Bootstrap // You can import js, ts, CSS, sass, ...vendor.tsThe preparation is done, then just type two commands at the command line (NPM install, NPM start), as follows:As shown, the listening port is 8080, in
Injection-InjectorIn the example code in the previous section, the component Ezalgo instantiates a Ezalog object directly in the constructor, which results in strong coupling between Ezapp and Ezalgo, which we can decouple using ANGULAR2 's injector/injector :Injector is like a marriage introduction , the man in the Shang registration of the female characteristics, about good meeting place , then, wait for delivery. Like what:The Ezapp component (man
Due to the rise of Angular2 soon, the relevant plug-ins are still very few, so sometimes have to use some jquery plug-ins to complete the project,So how do you put the jquery plugin in the angular2? Use custom directives!To introduce jquery before the context, this no longer describesFirst, create a directive that uses the @input method to get the parameters required by the jquery plugin.In Ngonchanges, whe
Preface
Small series recently in the front-end engineering work, using the ANGULAR2 front-end framework for the project front-end interface reconstruction. And then for the ANGULAR2 project operating principles have some new experience, here and June mutual encouragement. Body
ANGULAR2 directory Structure
Development Create a new folder HelloWorld
mkdir HelloW
HTML>HTML> Head> MetaCharSet=utf-8> Metaname= "Viewport"content= "Width=device-width, initial-scale=1"> title>Hello, Angular2.title> Head> Body> My-app>Loading ...My-app> Scriptsrc= "./bundle.js">Script> Body>HTML>is a my-app tag, in Angular 2, we can customize the mark, this My-app is our application after the stage of performance.A simpler paragraph of the script is to directly reference the script we are going to generate.4. Cre
This article will start from scratch to write the actual code to complete a ANGULAR2 demo.
The digression is actually ANGULAR2 official website's quick Start Project already very cool, but its emphasis fast two words, only enough to practice the play, actually GitHub has already had some good angular2-starter.
1. Install the necessary node environment and NPM
O
,
routing
],
declarations: [
appcomponent
//Some Component
],
bootstrap: [Appcomponent]
})
export class Appmodule {}
In this way, we refer to our configured routers in the @ngmodule imports.
4. Using Routing in Templates
By completing the 2 and 3 steps above, we can use routing in the template
App.component.ts
Template: '
We added the Routerlink directive to the If the path and routerlink of this URL match
Angular's idea: always delegate data access to a supportive service class.Angular application: Use the Angular extension syntax to write HTML templates, use component classes to manage these templates, add application logic with services, and package publishing components and services with modules.We start the app by booting the root module. Angular takes over, displays the content of the app in the browser, and responds to the user's interactions based on the instructions we provide.Eight major
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