如果对象有重复，则从列表中删除对象属性

Question

我有一个对象列表。所有对象都包含一个 NAME 属性。有几个对象具有相同的名称属性.

  const arr = [
    {name: "x", place: "a",  age: "13" },
    {name: "x", place: "b", age: "14" },
    {name: "y", place: "c",  age: "15" },
    {name: "d", place: "d", age: "16" }
]

我如何 trim 每个名称只有一个对象的列表（或创建一个新列表）属性？应从列表中删除任何其他重复项

我应该得到这样的结果

    const arr = [
    {name: "x", place: "a",  age: "13" },
    {name: "y", place: "c",  age: "15" },
    {name: "d", place: "d", age: "16" }
]

或

    const arr = [
    {name: "x", place: "b", age: "14" },
    {name: "y", place: "c",  age: "15" },
    {name: "d", place: "d", age: "16" }
]

我可以用 Lodash 做吗？

Answer 1

Lodash 的 uniqBy 功能正是您所需要的：

const _ = require('lodash');
const result = _.uniqBy(arr, 'name');

如果对象有重复，则从列表中删除对象属性

Remove objects from a List if the objects have duplicate property

javascript

arrays

lodash

如果对象有重复，则从列表中删除对象 属性

Remove objects from a List if the objects have duplicate property

javascript

arrays

lodash

如果对象有重复，则从列表中删除对象属性