BaseTemplate

This project was generated with Angular CLI version 8.3.20.

Development server

Run ng serve for a dev server. Navigate to http://localhost:4200/. The app will automatically reload if you change any of the source files.

Code scaffolding

Run ng generate component component-name to generate a new component. You can also use ng generate directive|pipe|service|class|guard|interface|enum|module.

Build

Run ng build to build the project. The build artifacts will be stored in the dist/ directory. Use the --prod flag for a production build.

Running unit tests

Run ng test to execute the unit tests via Karma.

Running end-to-end tests

Run ng e2e to execute the end-to-end tests via Protractor.

Further help

To get more help on the Angular CLI use ng help or go check out the Angular CLI README.

第三方组件

1. angular2-qrcode 生成二维码 (不支持中文)

   npm install angular2-qrcode --save 
   

   

2. JsBarcode 生成条形码

   • 把JsBarcode.all.min.js放在assets/libs文件夹下

   • 在angular.json文件里引入 JsBarcode.all.min.js

   • 使用的组件中加入declare var JsBarcode: any;

     注意：要在组件视图初始化加载完才可以调用生成条形码方法，因此生成条形码函数要写在生命周期 ngAfterViewInit中

3. eventemitter3 事件侦听器

 npm install  eventemitter3  --save

import {EventEmitter} from 'eventemitter3';
const myEmitter = new EventEmitter();
//监听事件event
myEmitter.on('event', function firstListener(arg1, arg2) {
  console.log('Helloooo! first listener');
});
//发送事件event
myEmitter.emit('event', 1, 2, 3, 4, 5);