Typescript 实战 --- （9）ES6与CommonJS的模块系统

// a.ts

export let a = 1;

// a.ts

let b = 2;
let c = 3;

export { b, c };

// a.ts

export interface Info {
  name: string;
  age: number;
}

// a.ts

export function f() {
  console.log(‘function f‘);
}

// a.ts

function g() {
  console.log(‘function g‘);
}

export { g as G }

// a.ts

export default function() {
  console.log(‘default function‘);
}

// b.ts

export const str = ‘hello‘;

// a.ts

export { str as hello } from ‘./b‘;

import { a, b, c } from ‘./a‘;

console.log(‘a, b, c: ‘, a, b, c);   // a, b, c:  1 2 3

import { Info } from ‘./a‘;

let jim: Info = {
  name: ‘Jim Green‘,
  age: 12
}

console.log(‘jim‘, jim);   // jim { name: ‘Jim Green‘, age: 12 }

import { f as foo } from ‘./a‘;

foo();   // function f

import * as All from ‘./a‘;

console.log(All.G());   // function g
console.log(All.g());   // 类型“typeof import("e:/study/ts-demo/es6/a")”上不存在属性“g”

import myFunction from ‘./a‘;

myFunction();   // default function

// a-node.ts

let a = {
  x: 2,
  y: 3
};

module.exports = a;

// b-node.ts

exports.c = 3;
exports.d = 4;

let a1 = require(‘./a-node‘);
let b1 = require(‘./b-node‘);

console.log(a1);   // {x: 2, y: 3}
console.log(b1);   // {c: 3, d: 4}