In w3schools.com, for window.location.hash
explain is: the hash property sets or returns the anchor part of a URL, including the hash sign (#).
For example: http://www.example.com/test.htm#part2
return #part2
And "href" abbreviation of hypertext references .
I think hashing is generating a value or values from a string of text using a mathematical function.
This makes me very confused. What does hash mean in window.location.hash
?