jQuery get "readyState" property of video

Question

As title,I cannot get DOM attrbute by jQuery.attr() But can get attrbute by document.attrbute. How to solve It?

console.log($("#video01").attr('readyState'));
console.log($("#video01")[0].readyState);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<video id='video01'  src="http://cloud.video.taobao.com/play/u/2554695624/p/1/e/6/t/1/fv/102/28552077.mp4" autoplay=""></video>

Answer 1

You have to use prop insted attr

console.log($("#video01").prop('readyState'));
console.log($("#video01")[0].readyState);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<video id='video01'  src="http://cloud.video.taobao.com/play/u/2554695624/p/1/e/6/t/1/fv/102/28552077.mp4" autoplay=""></video>