搭建Angular基础项目学习

• https://stackblitz.com/借助StackBlitz网站可快速开始搭建一个angular项目
• 一个angular的component包含三项东西
  • A component class that handles data and functionality. （componentName.component.ts）
  • An HTML template that determines the UI. （componentName.component.html）
  • Component-specific styles that define the look and feel. Though product list does not define any styles, this is where component CSS resides.（componentName.component.spec.ts）
• Angular's template syntax extends HTML and JavaScript. 

  five common features of Angular's template syntax:

  • <div *ngFor = "let product of products">the <div></div> repeats for each product in the products list.
  • <p *ngIf="product.description"></p>

    Angular only creates the <p> element if the current product has a description

  • Interpolation {{ }}
  • Property binding [ ]
  • Event binding ( )
• ts既typescript
• 项目编译用得是TypeScript编译器，当代码变化时，它会自动重新编译。 同时，该命令还会在浏览器中启动该应用，并且当代码变化时刷新浏览器。

参考 <https://angular.io/start#getting-started-with-angular-your-first-app>