Sort and format a leaderboard

The challenge

Write topPlayers(players, n) that returns the names of the n players with the highest score, best first, formatted like "1. Mia (95)". Don’t change the original array!

topPlayers([{ name: "Omar", score: 80 }, { name: "Mia", score: 95 }], 1)
// ["1. Mia (95)"]

Try it

Write your answer below, then press Check my answer. Your code runs right here in your browser, and the tests tell you what works.

What the tests check

• topPlayers([{ name: "Omar", score: 80 }, { name: "Mia", score: 95 }, { name: "Zoe", score: 88 }], 2) gives ["1. Mia (95)", "2. Zoe (88)"]
• topPlayers([{ name: "Sam", score: 10 }], 5) gives ["1. Sam (10)"]
• The original array keeps its order: (() => { const p = [{ name: "B", score: 1 }, { name: "A", score: 2 }]; topPlayers(p, 2); return p[0].name; })() gives "B"

Hints

Stuck? Open one hint at a time. Try again after each one.

A solution

There’s always more than one right way. Read it, make sure you understand it, then try writing it yourself without looking.

function topPlayers(players, n) {
  return [...players]
    .sort((a, b) => b.score - a.score)
    .slice(0, n)
    .map((p, i) => `${i + 1}. ${p.name} (${p.score})`);
}

Learn what you need

This exercise uses what Grade 10: Array Power Tools: map, filter & reduce teaches. Read those notes first if any of it is new.