JS 中使用map, 数组转成Number类型或者String类型

JS 数组中String类型转为Number

// 字符数组转数字数组
let strArr = ["1", "2", "3"];
let numArr = strArr.map(Number)

console.log(numArr) // 输出,数字数组

JS 数组中Number类型转为String

// number数组转为string数组
let numArr1 = [1, 2, 3]
let strArr1 = numArr1.map(String)

console.log(strArr1) // 输出,字符数组