how to refresh page on click of button

1<button type="button" onClick="refreshPage()">Close</button>
2
3<script>
4function refreshPage(){
5    window.location.reload();
6} 
7</script>
8

1<button type="button" onClick="refreshPage()">Close</button>
2
3
4<script>
5function refreshPage(){
6    window.location.reload();
7} 
8</script>
9   

1<button type="button" onClick="window.location.reload();">Close</button>