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Object方法

作者:互联网

Object.keys()返回键

1.处理对象,返回键

let person = {name:"张三",age:25,address:"深圳",getName:function(){}}
Object.keys(person) // ["name", "age", "address","getName"]

2.处理数组,返回字符串数组索引

let arr = [1,2,3,4,5,6]
Object.keys(arr) // ["0", "1", "2", "3", "4", "5"]

3.处理字符串,返回字符串数组索引

let str = "12345字符串"
Object.keys(str) // ["0", "1", "2", "3", "4", "5", "6", "7"]

Object.values()返回值

Object.entries()返回键值对

标签:返回,keys,Object,let,数组,字符串,方法
来源: https://www.cnblogs.com/ljh980217/p/16626550.html