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<!DOCTYPE html> <html> <head> <script> function clickCounter() { if(typeof(Storage) !== "undefined") { if (localStorage.clickcount) { localStorage.clickcount = Number(localStorage.clickcount)+1; } else { localStorage.clickcount = 1; } document.getElementById("result").innerHTML = "You have clicked the button " + localStorage.clickcount + " time(s)."; } 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 will continue to count (is not reset).</p> </body> </html>