分享ES6的7个实用技巧

let a = 'world', b = 'hello'[a, b] = [b, a]console.log(a) // -> helloconsole.log(b) // -> world

const a = 5, b = 6, c = 7console.log({ a, b, c });console.table({a, b, c, m: {name: 'xixi', age: 27}});

// 寻找数组中的最大值const max = (arr) => Math.max(...arr);max([123, 321, 32]) // outputs: 321// 计算数组的总和const sum = (arr) => arr.reduce((a, b) => (a + b), 0)sum([1, 2, 3, 4]) // output: 10

const one = ['a', 'b', 'c']const two = ['d', 'e', 'f']const three = ['g', 'h', 'i']const result = [...one, ...two, ...three]

const obj = { ...oldObj }const arr = [ ...oldArr ]

// 我们尝尝使用的写法const getStuffNotBad = (id, force, verbose) => { ...do stuff}// 当我们调用函数时， 明天再看，尼玛 150是啥，true是啥getStuffNotBad(150, true, true)// 看完本文你啥都可以忘记, 希望够记住下面的就可以了const getStuffAwesome = ({id, name, force, verbose}) => { ...do stuff}// 完美getStuffAwesome({ id: 150, force: true, verbose: true })

const [user, account] = await Promise.all([ fetch('/user'), fetch('/account')])