$('.btn1').on('click',function(){ sessionStorage.setItem('key1','value1'); sessionStorage.setItem('key2','value2'); for (var i = 0; i < sessionStorage.length; i++) alert(sessionStorage.getItem(sessionStorage.key(i))); }); $('.clear-btn').on('click',function(){ sessionStorage.clear(); });
<button type = "button" class = "btn1">Пробуем!</button> <button type = "button" class = "clear-btn">Очищаем!</button>