lxt-st

setTimeout ( function ( ) { var a = 'hello' setTimeout ( function () { var b = 'lagou' setTimeout ( function () { var C = 'I love U' console.log(a + b + c) }，10) }，10) }，10)

const fp = require('lodash/fp') // 数据 // horsepower 马力，dollar_ value 价格，in_ stock库存 const cars =[ { name: 'rrari FF', horsepower: 660, dollar_value: 700000, in_stock: true } , { name: 'Spyker C12 Zagato' , horsepower: 650, dollar_value: 648000, in

// support.js class Container { static of(value) { return new Container(value ) } constructor (value ) { this._value = value } map(fn) { return Container.of(fn(this._value)) } } class Maybe { static of(x) { return new Maybe(x)

谈谈你是如何理解 JS 异步编程的，EventLoop、消息队列都是做什么的，什么是宏任务，什么是微任务？