对象内部数组的平均值

const students = [
  { name: 'Alice', scores: [85, 90, 78] },
  { name: 'Bob', scores: [92, 88, 95] },
  { name: 'Charlie', scores: [77, 80, 84] }
];

function calculateAverageScore(student) {
  const sum = student.scores.reduce((acc, score) => acc + score, 0);
  return sum / student.scores.length;
}

students.forEach(student => {
  console.log(`${student.name}'s average score is ${calculateAverageScore(student)}`);
});

function calculateAverageScore(student) {
  if (student.scores.length === 0) {
    return 0; // 或者返回一个默认值或抛出异常
  }
  const sum = student.scores.reduce((acc, score) => acc + score, 0);
  return sum / student.scores.length;
}

function calculateAverageScore(student) {
  const scores = student.scores.filter(score => typeof score === 'number');
  if (scores.length === 0) {
    return 0; // 或者返回一个默认值或抛出异常
  }
  const sum = scores.reduce((acc, score) => acc + score, 0);
  return sum / scores.length;
}