What does <a href="#">Click here</a> mean? [closed]

Question

What does <a href="#">Click here</a> mean?

Answer 1

It means "Render a hyperlink that takes the visitor to the top of the page and label it with the, distinctly uninformative, text Click here"

Answer 2

<a  href="#Bookmark1" target="frame1">
  Link text that leads to Bookmark1 in the current document
</a>

<a  href="http://www.foo.com/index.html#Bookmark1" target="frame1">
  Link text that leads to Bookmark1 in index.html at www.foo.com
</a>

If no Bookmark is specified in the HREF statement, the browser will default to the top of the document.

From Hyperlink [A Href]