js（jquery）判断当前设备是手机还是电脑

<script>
function isWap() {
            var userAgentInfo = navigator.userAgent;
            var Agents = ["Android", "iPhone","SymbianOS", "Windows Phone","iPad", "iPod"];
            var flag = true;
            for (var v = 0; v < Agents.length; v++) {
                if (userAgentInfo.indexOf(Agents[v]) > 0) {
                    flag = false;
                    break;
                }
            }
            return flag;
        }
</script>