require import 引入区别

//require.js
let a = 0;
const count = () => {
    ++a;
    console.log(a,‘==require模块内部函数执行==‘)
}
setTimeout(function(){
    ++a;
    console.log(a,‘==require模块内部定时器执行==‘);
}, 500);
module.exports = {
    a,
    count,
};

let foo = require(‘./js/require‘);
foo.count();
setTimeout(function(){
    console.log(foo.a,‘==require导入文件==‘);
}, 1000);

// es6文件
let b = 0;
const countb = () => {
    ++b;
    console.log(b,‘==es6模块内部函数执行==‘)
}
setTimeout(function(){
    ++b;
    console.log(b,‘==es6模块内部定时器执行==‘);
}, 500);
export {
    b,
    countb,
};

import { b, countb } from ‘./js/es6‘;
countb();
setTimeout(function(){
    console.log(b,‘==es6导入文件==‘);
}, 1500);