html 中的 head 标签引入: <script src="test.js" type="module"></script> test.js : import { a } from "./test2.js"; console.log(a); test2.js: 'use strict' let a = 0; export { a }; node 版本:8.9,从官网下载的 msi 重装的: 在浏览器中运行正常,没有报错
大家都知道来到ES6版本,ES就原生支持JS Module的概念. import和export的写有哪些呢,我们看看 import: import from 和 var 变量一样,也会存在提升,这意味着可以在 import 之前用 import 进来的东西 import './xxx.js'; // 只会执行import的js文件,但是不会引入任何值 import a, {b, c} from './xxx.js'; // 等价于 import {default as a, b, c} from
1.export a.export 变量 export var name = 'jack';export var age = 18;//等同于 var name = 'jack';var age = 18;export {name,age}; a.export 方法 export function sayHello(){ console.log('hello world!'); } //等同于 function sayHello(){ console.log('hello world!'); }
import import './module1.js'; (无对象导入) import d from './module1.js'; (导入默认对象) import {Employee, getEmployee} from './module1.js'; (导入命名对象) import {default as d, Employee} from './module1.js'; (导入默认对象和命名对象) import * as allFromModule1 from './module1.js
2016-10-31更新 webstorm不支持es6语法怎么办? webstorm不支持jsx语法怎么办? 参考:webstorm不支持jsx语法怎么办 I spent ages trying to fix this. Every solution talks about 'setting options'. I don't know what that means. Finally, I figured it out. You can just include a commented out
var testdata='sdfkshdf'; //export testdata;//err export {testdata as ms}; export var firstName = 'Michael'; export var lastName = 'Jackson'; export var year = 1958; import $ from 'jquery'; import lastName from './index2.js'; import {ms} from './index