jQuery- Page Scroll to Top with jQuery | How to add Page Scroll to Top in web page

In some websites, you can see that when you scroll the page there is a link at the bottom of the page with text "Scroll to Top" and when you click on this link page moves to the top of the page. If you web page has lots of content, It is a very good idea to provide visitors within a easy way to quickly go to the top of the page.