<!DOCTYPE html>
<html>
<body>
<h1>ECMAScript 5</h1>
<p>ECMAScript 5 允许保留字作为属性名称：</p>
<p id="demo"></p>
<script>
var obj = {name: "Bill", new: "yes"};
document.getElementById("demo").innerHTML = obj.new;
</script>
</body>
</html>