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

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

// 尋找數(shù)組中的最大值
const max = (arr) => Math.max(...arr);
max([123, 321, 32]) // outputs: 321
// 計算數(shù)組的總和
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 ]

// 我們嘗嘗使用的寫法
const getStuffNotBad = (id, force, verbose) => {
 ...do stuff
}
// 當我們調(diào)用函數(shù)時， 明天再看，尼瑪 150是啥，true是啥
getStuffNotBad(150, true, true)
// 看完本文你啥都可以忘記, 希望夠記住下面的就可以了
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')
])