javascript 从数组中删除项目

Posted 2021-05-03

/*
Removes first all items from array.
Returns nothing.
*/
function removeFromArrayAll(array, item) {
  while (true) {
    if (removeFromArray(array, item) == null) {
      break
    }
  }
}

/*
Removes first item from array.
Returns removed item or null.
*/
function removeFromArray(array, item) {
  let index = array.indexOf(item);
  if (index != -1) {
    return array.splice(index, 1)[0]
  }
  return null;
}