What is href=“#” and why is it used?

Question

On many websites I see links that have href=\"#\". What does it mean? What is it used for?

Answer 1

Putting the "#" symbol as the href for something means that it points not to a different URL, but rather to another id or name tag on the same page. For example:

Click to go to the bottom of the page
blah blah
blah blah
...

However, if there is no id or name then it goes "no where."

Here's another similar question asked HTML Anchors with 'name' or 'id'?