prototype.js的系列文章——$H()函数

$H()方法把对象转化成可枚举的貌似联合数组Hash对象。

<script>

    function testHash()
    {
        //let's create the object
        var a = {
            first: 10,
            second: 20,
            third: 30
            };

        //now transform it into a hash
        var h = $H(a);
        alert(h.toQueryString()); //displays: first=10&second=20&third=30
    }

</script>