Question

如何声明对象或null的原型？我试过了，但是不行：

page: PropTypes.oneOf([
    PropTypes.shape({
      elements: PropTypes.array.isRequired,
      isFailed: PropTypes.bool.isRequired,
      isFetching: PropTypes.bool.isRequired,
      isRefreshing: PropTypes.bool.isRequired,
      isSuccess: PropTypes.bool.isRequired,
    }).isRequired,
    PropTypes.oneOf([null]).isRequired,
  ]).isRequired,

还是可能这样？

page: PropTypes.oneOfType([null, 
        PropTypes.shape({
          elements: PropTypes.array.isRequired,
          isFailed: PropTypes.bool.isRequired,
          isFetching: PropTypes.bool.isRequired,
          isRefreshing: PropTypes.bool.isRequired,
          isSuccess: PropTypes.bool.isRequired,
        }).isRequired]).isRequired

Answer 1

虽然感觉不正确，但是可以起作用：

PageItem.defaultProps = {
  page: null
}
PageItem.propTypes = {
  page: PropTypes.shape({
    elements: PropTypes.array.isRequired,
    isFailed: PropTypes.bool.isRequired,
    isFetching: PropTypes.bool.isRequired,
    isRefreshing: PropTypes.bool.isRequired,
    isSuccess: PropTypes.bool.isRequired,
  }),
}

我刚刚删除了页面形状上的isRequired

对象的原型是必需的还是null？

1 个答案: