【算法之旅】基础算法之递归

String转化为int

var ids = "18"
var eid = parseInt(ids)  // eid = 18

int转化为String

const eid = 18
const id = eid.toString()  // id = "18"

查看参数类型

var id = 1
console.log(typeof(id)) // number

var id = '1'
console.log(typeof(id)) // string