如何将一个数组中的元素与另一个数组中的元素进行比较

function arraysEqual(a, b) {
  if (a.length !== b.length) return false;
  for (let i = 0; i < a.length; i++) {
    if (a[i] !== b[i]) return false;
  }
  return true;
}

function arraysEqualUnordered(a, b) {
  if (a.length !== b.length) return false;
  let mapA = new Map();
  let mapB = new Map();
  for (let item of a) {
    mapA.set(item, (mapA.get(item) || 0) + 1);
  }
  for (let item of b) {
    mapB.set(item, (mapB.get(item) || 0) + 1);
  }
  for (let [key, val] of mapA) {
    if (!mapB.has(key) || mapB.get(key) !== val) return false;
  }
  return true;
}

function containsAny(a, b) {
  for (let item of a) {
    if (b.includes(item)) return true;
  }
  return false;
}