代码示例:(标识:jsck_storage_loop)
<!DOCTYPE html>
<html>
<body>

<h1>Storage 对象</h1>

<p>本例演示如何遍历此域的所有本地存储项。</p>

<h2>缺少 localStorage 项目?</h2>

<p>由于您的本地存储中可能没有存储指定的项目,因此我们添加了一个脚本来为您创建它。</p>

<button onclick="createItems()">创建本地存储项</button>

<h2>显示项目</h2>

<p>单击按钮来显示所有项目:</p>

<button onclick="displayItems()">显示项目</button>

<p id="demo"></p>

<script>
function createItems() {
  localStorage.setItem("mytime", Date.now());
  localStorage.setItem("myname", "Bill");
  localStorage.setItem("myage", 19);
}

function displayItems() {
  var l, i;
  document.getElementById("demo").innerHTML = "";
  for (i = 0; i < localStorage.length; i++) {
  x = localStorage.key(i);
  document.getElementById("demo").innerHTML += x + "<br>";
  }
}
</script>

</body>
</html>
运行结果: