$.each遍历

 $(document).ready(function () {
            var map = [
                {"name":"kitty", age:21},
                {"name":'sony', age:22}
            ]
            var $div = "<div>"
            for (var i in map) {
                var $text = "<div>"
                $.each(map[i], function (key, value) {
                    $text += "<span>" + key + " :   </span>" + "<span>" + value + "</span>" + " "
                })
                $div += $text + "</div>"
            }
            $div += "</div>"
            $("html body").html($div)
        })

 or

        $(document).ready(function () {
            var map = [
                {"name":"kitty", age:21},
                {"name":'sony', age:22}
            ]
            var $div = "<div>"
            $.each(map, function (key, val) {
                var $text = "<div>"
                $.each(val, function (key, value) {
                    $text += "<span>" + key + "   :   </span>" + "<span>" + value + "</span>    "
                })
                $text += "</div>"
                $div += $text
            })
            $div += "</div>"
            $("html body").html($div)

        })