无法在 TypeScript 中引用外部模块

Question

我想在 TypeScript 脚本的 TypeScript code, but it is failing. Specifically, I want to use methods from the referring external.d.ts 文件中使用外部模块。

我的代码是：

module test {

    //This is not working. I want to know the syntax to refer to express here.
    private express: typeof express = require("express");

    export testserver
    {
        constructor(private app:express.Application)
        {
          //Can not find express symbol
        }
    }

Answer 1

//This is not working. I want to know the syntax to refer to express here.
private express: typeof express = require("express");

使用import:

  import express = require("express");

  export testserver
  {
       constructor(private app:express.Application)
       {
       }
  }

并且不要混用内部和外部模块。更多内容在 YouTube 视频 TypeScript Modules Demystified: Internal, AMD with RequireJS, CommonJS with Node.js.

Answer 2

这甚至适用于

 import * as express from 'express';

但问题是有时我 compile.Is 得到空白的 javascript 文件，这是一个已知问题？我是打字稿的新手，如果有任何问题请纠正我 wrong.Thank 你。

无法在 TypeScript 中引用外部模块

Unable to refer external module in TypeScript

module

external

typescript