iterator access denied？why？

[NeuralMayu]

No description provided.

[ZLY201]

Could you give me more information?

Or you just want to know why we checked iterator whether valid?

[NeuralMayu]

import { LinkList } from 'js-sdsl';
const LinkListRef = React.useRef(new LinkList());
const computed = React.useRef(null);
LinkListRef.current.pushBack(key);
computed.current = LinkListRef.current.begin();
console.log(LinkListRef.current.size()); // 1
console.log(LinkListRef.current.begin());
console.log(LinkListRef.current.end());
console.log(LinkListRef.current.begin().equals(LinkListRef.current.end())); // false
and

[ZLY201]

The end iterator is a super end for all container.

For example:

index 0 1 2 3 4 5
value 1 2 3 4 5 Error

The begin will pointer to index 0 and the value is 1.

The end wlill pointer to index 5 and will get a error when run iteraotr.pointer.

Same as rEnd.

Design ideas from C++ STL.