<p><button onclick="javascript:{ window.alert(location.hash); }">Display location.hash.</button></p>
<p><button onclick="javascript:{ window.alert(location.host); }">Display location.host.</button></p>
<p><button onclick="javascript:{ window.alert(location.hostname); }">Display location.hostname.</button></p>
<p><button onclick="javascript:{ window.alert(location.origin); }">Display location.origin.</button></p>
<p><button onclick="javascript:{ window.alert(location.pathname); }">Display location.pathname.</button></p>
<p><button onclick="javascript:{ window.alert(location.port); }">Display location.port.</button></p>
<p><button onclick="javascript:{ window.alert(location.search); }">Display location.search.</button></p>
<a id="test" href="/">a</a>