what does href mean code example

Example 1: html a href

<a href="http://example.com" >Link text</a>

Example 2: a href

<a href="#"><!-- The "#" to be replaced with filename or website address -->Go Somewhere</a>

Example 3: what does href=# mean in html

<!-- this href tag link to the top of the current page -->
<a href="#">text</a>

Example 4: whatis a hrefd

The href attribute specifies the URL of the page the link goes to