CODEWITHSUNDEEP
javascriptobjectlodash
Alec Sibilia
Alec Sibilia

Reputation: 956

How do I return a nested object with the largest key:value using lodash?

My object looks like this: 

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

How would I return the player object with the highest "points" value? For example:

{ name: tim, points: 55 }

Upvotes: 2

Views: 410

Answers (3)

stasovlas
stasovlas

Reputation: 7416

use _.maxBy 

_.chain(players)
     .values()
     .maxBy('points')
     .value();

Upvotes: 2

acrazing
acrazing

Reputation: 2284

const data = {p1: {name: 'hello', points: 1}, p2: {name: 'world', points: 2}}
const dataList = _.values(data)
const maxPointItem = dataList.reduce((prev, curr) => prev.points < curr.points ? curr : prev), dataList[0])

Upvotes: 0

Pranav C Balan
Pranav C Balan

Reputation: 115242

Use JavaScript Array#reduce method.

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);

Upvotes: 2

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