从数组中动态移除n个元素并添加到另一个数组中

function removeAndAddElements(arr, n) {
  var removedElements = [];
  var remainingElements = [];

  for (var i = 0; i < n; i++) {
    removedElements.push(arr.pop());
  }

  remainingElements = arr;

  return {
    removedElements: removedElements,
    remainingElements: remainingElements
  };
}

// 示例用法
var originalArray = [1, 2, 3, 4, 5];
var result = removeAndAddElements(originalArray, 2);

console.log("移除的元素：", result.removedElements); // 输出 [5, 4]
console.log("剩余的元素：", result.remainingElements); // 输出 [1, 2, 3]