how to reload javascript code example

Example 1: refresh window js

window.location.reload();

Example 2: js refresh button

<a onClick="window.location.reload()">Refresh</a>

Example 3: what is location reload

The Location.reload() method reloads the current URL, like the Refresh button.
may be blocked and a SECURITY_ERROR DOMException thrown if 
the origin of the calling script differs from 
the origin of the page that owns the Location object.