<!DOCTYPE html>
<html>
<head>
<script>
function clickCounter() {
if (typeof Storage !== "undefined") {
if (sessionStorage.clickcount) {
sessionStorage.clickcount = Number(sessionStorage.clickcount) + 1;
} else {
sessionStorage.clickcount = 1;
}
document.getElementById("result").innerHTML =
"You have clicked the button " +
sessionStorage.clickcount +
" time(s) in this session.";
} else {
document.getElementById("result").innerHTML =
"Sorry, your browser does not support web storage...";
}
}
</script>
</head>
<body>
<p><button onclick="clickCounter()" type="button">Click me!</button></p>
<div id="result"></div>
<p>Click the button to see the counter increase.</p>
<p>
Close the browser tab (or window), and try again, and the counter is reset.
</p>
</body>
</html>