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js清除两个数组相同数据(js两个数组对比 去除相同项得到新数组)
js 删除两个数组中id相同的对象
let arr1 = [{id:'1',name:'json'},{id:'2',name:'book'} ]
let arr2 = [{id:'1',name:'json',age:'15'},{id:'2',name:'book',age:'16'},{id:'3',name:'ani',age:'17'}]
//ES6的方法
let add = arr2.filter(item => !arr1.some(ele=>ele.id===item.id));

js清除一个数组相同数据(去除相同项得到新数组)
js 删除一个数组中id相同的对象
let arr = [
    { id: 1, name: "jack" },
    { id: 2, name: "张三" },
    { id: 1, name: "rose" },
    { id: 3, name: "李四" },
    { id: 2, name: "力量" },
  ];
let res = arr.filter(function (item, index, self) {
    return self.findIndex((el) => el.id == item.id) === index;
  });
console.log(res);