vue中对象数组去重的实现

unique(arr) {
 const res = new Map();
 return arr.filter((arr) => !res.has(arr.id) && res.set(arr.id, 1))
}
 

 <el-button type="primary" size="medium" @click="quChong()">点击</el-button>

quChong() {
    let arr = [
     {
      id: 1,
      name: '111'
     },
     {
      id: 1,
      name: '111'
     },
     {
      id: 2,
      name: '222'
     },
     {
      id: 3,
      name: '333'
     }
    ];
    console.log(arr);
    console.log('--------------------');
    let arr1 = this.unique(arr);
    console.log(arr1);
   },
   unique(arr) {
    const res = new Map();
    return arr.filter((arr) => !res.has(arr.id) && res.set(arr.id, 1));
   },