js 随机取数组

function getRandomElement(arr) {
  const randomIndex = Math.floor(Math.random() * arr.length);
  return arr[randomIndex];
}

const array = [1, 2, 3, 4, 5];
console.log(getRandomElement(array));

function getRandomElement(arr) {
  if (arr.length === 0) {
    throw new Error('Array is empty');
  }
  const randomIndex = Math.floor(Math.random() * arr.length);
  return arr[randomIndex];
}

const getRandomElement = arr => arr[Math.floor(Math.random() * arr.length)];

const array = ['a', 'b', 'c', 'd'];
console.log(getRandomElement(array));