​x
 
<!DOCTYPE html>
<html>
<body>
​
<p>切勿将字符串创建为对象。</p>
​
<p>JavaScript 无法比较对象。</p>
​
<p id="demo"></p>
​
<script>
var x = new String("Bill"); 
var y = new String("Bill");
document.getElementById("demo").innerHTML = x==y;
</script>
​
</body>
</html>
​