how does href work in html code example

Example 1: buton html href

<!-- if you are on Window : --> 
<button onclick="window.location.href='page2.html'">
  Button
</button>

<!-- if you are on linux or macOS : -->
<button onclick="location.href='page2.html'">
  Button
</button>

Example 2: href html

<a href="link">text</a>