divergent.js

// *SMELL*
function ballSports() {
  const playersTypes = [
    {name: "soccerPlayers", usesFeet: true, usesHands: false},
    {name: "basketPlayers", usesFeet: false, usesHands: true},
    {name: "volleyPlayers", usesFeet: false, usesHands: true},
    {name: "hockeyPlayers", usesFeet: false, usesHands: false}
    // WHAT IF WE NEED TO ADD {name: "baseballPlayers", usesFeet: false, usesHands: false} ?
  ];

  return playersTypes.filter(players => {
    if (players.usesFeet || players.usesHands) {
      return players;
    }
  })
}

// *REFACTORED*
function ballSports() {
  const playersTypes = [
    {name: "soccerPlayers", usesFeet: true, usesHands: false, usesRoundObject: true},
    {name: "basketPlayers", usesFeet: false, usesHands: true, usesRoundObject: true},
    {name: "volleyPlayers", usesFeet: false, usesHands: true, usesRoundObject: true},
    {name: "hockeyPlayers", usesFeet: false, usesHands: false, usesRoundObject: false},
    {name: "baseballPlayers", usesFeet: false, usesHands: false, usesRoundObject: true}
  ];

  return playersTypes.filter(players => {
    if (players.usesRoundObject) {
      return players;
    }
  })
}