如何导入在同一名称空间上扩展另一个模块的模块 [英] How to import a module that extends another on the same namespace

问题描述

简单的路障。我需要在我的一些服务中使用Leaflet和Leaflet-Draw插件。

我不知道如何导入完整的模块（核心和插件）

  //核心
导入*作为来自'传单'的L; 
 //扩展名
 import'leaflet-draw'; 
 
导出类LeafletConsumerService {} 
  

我有一个解决方案我不喜欢好像很多。我通过在 index.html 中硬链接来加载库，消费者只需要对打包文件进行引用声明

  ///< reference path =../ typings / index.d.ts/> 
 
导出类LeafletConsumerService {} 
  

我还有其他办法吗这个？有没有办法导入一个文件，只会导致副作用到已经加载的模块？

解决方案

好的，一个快速而肮脏的解决方如果您从快速入门回购启动项目，则此答案有效。转到 system.config.extras.js 并扩展您的配置：

  System.config（{
 map：{
'leaflet'：'npm：leaflet / dist / leaflet.js'
}，
包裹：{
宣传单：{
 defaultExtension：'js'
}，
} 
}）; 
  

这意味着我们现在可以导入传单

 从'leaflet'导入*为L; 
  

并按照描述添加我们相应的扩展文件

< pre class =lang-ts prettyprint-override> import'your-leaflet-extension';


请记住扩展您的分机的类型信息（通过打字文件或自己制作）

A simple road block. I need to use Leaflet and the Leaflet-Draw plugin in some of my services.

I don't know how to import the complete module (core and plugin)

// the core
import * as L from 'leaflet';
// extension
import 'leaflet-draw';

export class LeafletConsumerService {}

I have a solution that I don't like much. I load the libraries by hard-linking them in index.html and the consumer simply has a reference declaration to the typings files

/// <reference path="../typings/index.d.ts" />

export class LeafletConsumerService {}

Is there no other way I can do this? is there a way to import one file that should just cause a side-effect onto an already loaded module?

解决方案

Ok, a quick and dirty solution. This answer works if you start your project from a quickstart repo. Goto system.config.extras.js and extend your configuration as such:

System.config({
    map: {
        'leaflet': 'npm:leaflet/dist/leaflet.js'
    },
    packages: {
        leaflet: {
            defaultExtension: 'js'
        },
    }
});

this means that we can now import leaflet as such

import * as L from 'leaflet';

and add our corresponding extension files as described

import 'your-leaflet-extension';

Remember to extend the type info for your extensions (through a typings file or make your own)

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