I have the following code that shuffles player records of string,object to Record<string(Team name),Record<string,object>(Player's)> but every team need's to have a captain.

var randomProperty = function (obj, amount) {
  var keys = Object.keys(obj);
  const newObj = [];
  for (let index = 0; index < amount; index++) {
    const item = keys[(keys.length * Math.random()) << 0];
    newObj.push(obj[item]);
    delete obj[item];
  }
  return newObj;
};
function shuffle(teamSize) {
  let teams = {
    unknown: {
      ["1"]: {
        role: "test",
        captain: false
      },
      ["2"]: {
        role: "test",
        captain: false
      },
      ["3"]: {
        role: "test",
        captain: false
      },
      ["4"]: {
        role: "test",
        captain: false
      }
    }
  };
  const playersClone = Array.from(Object.entries(teams.unknown));
  const teamCount = Math.floor(playersClone.length / teamSize);
  const clone = Array.from(playersClone).slice(0, teamCount * teamSize);
  const captains =
    clone.filter((x) => x[1].captain).length == 0
      ? randomProperty(clone, teamCount)
      : clone.filter((x) => x[1].captain);
  for (let i = 0; i < playersClone.length; i++) {
    const captains = clone;
    const player = clone.splice(Math.random() * clone.length, 1)[0];
    teams = {
      ...teams,
      [i % teamCount]: {
        ...teams[i % teamCount],
        [player[0]]: {
          role: player[1].role,
          captain: player[1].captain
        }
      }
    };
  }
  return teams;
}
console.log(shuffle(2));

What I want to achieve is that before the teams are shuffled they need to have a captain on each team.