javascript - 如何返回具有最大键 :value using lodash? 的嵌套对象

Question

我的对象看起来像这样:

players: {
  p1: {
    name: joe,
    points: 25
  },
  p2: {
    name: frank,
    points: 35
  },
  p3: {
    name: tim,
    points: 55
  }
}

如何返回具有最高“点”值的玩家对象？例如:

{ name: tim, points: 55 }

Answer 1

使用 JavaScript Array#reduce方法。

var data = {
  players: {
    p1: {
      name: 'joe',
      points: 25
    },
    p2: {
      name: ' frank',
      points: 35
    },
    p3: {
      name: 'tim',
      points: 55
    }
  }
};

var res = data.players[
  // get all property names
  Object.keys(data.players)
  // get the property name which holds the hghest point
  .reduce(function(a, b) {
    // compare and get the property which holds the highest
    return data.players[a].points < data.players[b].points ? b : a;
  })
];

console.log(res);