LocalstorageTest1

<script type="text/javascript">
window.onload=showView;
function showView(){
if( localStorage.numViews == undefined ) localStorage.numViews  = 0;
document.getElementById("show").innerHTML = (localStorage.numViews);
 localStorage.numViews  = Number(localStorage.numViews )+1;
}
 
function reset(){
localStorage.clear();
}
</script>
<div id="show"></div><br />
<button onclick="showView();">カウントアップ</button><br />
<button onclick="reset();">Reset</button>

Localstorage 2