test() {
      const arr = [
        {
          name: '张三',
          age: 22
        },
        {
          name: '李四',
          age: 22
        },
        {
          name: '张三',
          age: 23
        }
      ]
      const map = new Map()
      const qc = arr.filter(key => !map.has(key.name) && map.set(key.name, 1)) // 这里对name属性进行去重
      console.log('qc')
      console.log(qc)
    }