ES7
2018-09-27 本文已影响0人
牛耀
- 指数运算符(幂): **
- Array.prototype.includes(value) : 判断数组中是否包含指定value
console.log(2 ** 3);//8
let arr = [1,4,5,6,'abc'];
console.log(arr.includes('a'));//false
console.log(arr.includes('abc'));//true
console.log(arr.includes(4));//true
