Please tell me what is the use of #

Question

Hello

Answer 1

your question is unclear, and your description irrelevant ^^

according to the tag "web-storage", your question may refer to that rather than to '#' (hashtag)...

if so, look and dive at this link:

https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API

Answer 2

Hashtag

Answer 3

visph it is my answer😀