lodash 常用方法

数组对象根据某一个值去重

let arr = [{name:'l',id:1},{name:'li',id:2},{name:'le',id:3},{name:'lw',id:1},]

console.log(this._.uniqBy(arr, 'id'))

//[{name:'l',id:1},{name:'li',id:2},{name:'le',id:3}]

数组去重

this._.uniq([2, 1, 2]);
// => [2, 1]

两个数组对象对比根据某一个值去重

let newArr = this._.differenceBy(
      [
        { name: "a", age: 12 },
        { name: "b", age: 18 },
        { name: "c", age: 18 }
      ],
      [
        { name: "a", age: 14 },
        { name: "c", age: 18 }
      ],
      "name"
    );
    console.log(newArr);
    //[{ name: "b", age: 18 },]

若干数组并集，交集，补集

var a = [];
var b = [];
var c = [];

_.union(a, b, c);
_.intersection(a, b, c);
_.xor(a, b);

陆续更新