在Node.js中包含来自外部文件的es6类

Say I have a file class.js:

说我有一个文件class.js：

class myClass {
   constructor(arg){
      console.log(arg);
   }
}

And I wanted to use the myClass class in another file. How would I go about this?
I've tried:
var myClass = require('./class.js');
But it didn't work.
I've looked at module.exports but haven't found an example that works for es6 classes.

我想在另一个文件中使用myClass类。我怎么会这样呢？我试过了：var myClass = require（'./ class.js'）;但它没有用。我查看了module.exports但没有找到适用于es6类的示例。

2 个解决方案

#1

Either do

要么这样做

module.exports = class MyClass {
    constructor(arg){
        console.log(arg);
    }
};

and import with

并导入

var a = require("./class.js");
new a("fooBar");

---

or use the newish syntax (may require you to babelify your code first)

或使用新语法（可能要求您先将代码变为babelify）

export class MyClass {
    constructor(arg){
        console.log(arg);
    }
};

and import with

并导入

import {myClass} from "./class.js";

#2

export default class myClass {
   constructor(arg){
      console.log(arg);
   }
}

Other file:

其他档案：

import myClass from './myFile';