2016年9月29日 (四) 03:24的版本

QuickStart

0、安装npm。
 
1、新建项目文件夹angular2，放入4个初始文件。
    package.jon
    tsconfig.json
    typings.json
    systemjs.config.js
 
2、安装包，项目文件夹下就会新增node_modules、typings文件夹。
    npm install
 
3、在项目文件夹根下运用文件夹app，新增3个运用文件。
    app.component.ts
    app.module.ts
    main.ts
 
4、在项目文件夹下新增2个文件。
    index.html
    types.css
 
5、编辑、运行程序。使用Browsersync来动态刷新页面。
    npm start

Tutorial

The Hero Editor

Let’s take stock of what we’ve built.

• Our Tour of Heroes uses the double curly braces of interpolation (a kind of one-way data binding) to display the application title and properties of a Hero object.
• We wrote a multi-line template using ES2015’s template strings to make our template readable.
• We can both display and change the hero’s name after adding a two-way data binding to the <input> element using the built-in ngModel directive.
• The ngModel directive also propagates changes to every other binding of the hero.name.

Master/Detail

Here’s what we achieved in this chapter:

• Our Tour of Heroes now displays a list of selectable heroes
• We added the ability to select a hero and show the hero’s details
• We learned how to use the built-in directives ngIf and ngFor in a component’s template

Multiple Components

Let’s take stock of what we’ve built.

• We created a reusable component
• We learned how to make a component accept input
• We learned to declare the application directives we need in an Angular module. We list the directives in the NgModule * decorator's declarations array.
• We learned to bind a parent component to a child component.

Services

Let’s take stock of what we’ve built.

• We created a service class that can be shared by many components.
• We used the ngOnInit Lifecycle Hook to get our heroes when our AppComponent activates.
• We defined our HeroService as a provider for our AppComponent.
• We created mock hero data and imported them into our service.
• We designed our service to return a Promise and our component to get our data from the Promise.