过滤对象数组中有重复值的项

不多说了直接看实例吧

    let arr = [{
      id: 1,
      name: 'lucy'
    }, {
      id: 2,
      name: 'lily'
    }, {
      id: 3,
      name: 'lucy'
    }]
    let d_name = []
    let d_list = []
    for (let i in arr) {
      if (d_name.indexOf(arr[i].name) == -1) {
        d_name.push(arr[i].name);
        d_list.push(arr[i]);
      }
    }
    console.log(d_list)
    //输出结果:
    [{
      id: 1,
      name: 'lucy'
    }, {
      id: 2,
      name: 'lily'
    }]
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