问题

const teams = [
  { name: "Team 1", members: ["Paul", "Lisa"] },
  { name: "Team 2", members: ["Laura", "Tim"] }
];

function* getMembers(members) {
  for (let i = 0; i < members.length; i++) {
    yield members[i];
  }
}

function* getTeams(teams) {
  for (let i = 0; i < teams.length; i++) {
    // ✨ SOMETHING IS MISSING HERE ✨
  }
}

const obj = getTeams(teams);
obj.next(); // { value: "Paul", done: false }
obj.next(); // { value: "Lisa", done: false }

• A: yield getMembers(teams[i].members)
• B: yield* getMembers(teams[i].members)
• C: return getMembers(teams[i].members)
• D: return yield getMembers(teams[i].members)

参考

• yield* (opens new window)