-
对象数组转某个属性数组
例如:我有一个如下的对象数组[ { "name":"ali", "age":12 }, { "name":"baba", "age":22 } ]
我想获取名字的数组:
[ "ali", "baba" ]
可以直接使用数组的map操作,得到name的数组:
array.map(it => it.name)
-
判断一个数组是否包含另外一个数组
let a = [1, 2, 3, 4, 5, 6, 7, 8]; let b = [1, 2]; let c = [3, 9]; function includes(arr1, arr2) { return arr2.every(val => arr1.includes(val)); } console.log(includes(a, b)); //true console.log(includes(a, c)); //false
扫码关注微信公众号,更好的交流
JS常用操作,提升代码效率
猜你喜欢
转载自blog.csdn.net/meifannao789456/article/details/100128938
今日推荐
周排行