我想通过javascript获取视频的时长,此代码不起作用
<video id="myVideo">
<source src="">
</video>
<script>
var vid = document.getElementById("myVideo");
alert(vid.duration);
</script>
答案 0 :(得分:1)
您需要等待文件的元数据加载:
var vid = document.getElementById("myVideo");
vid.addEventListener('loadedmetadata', function() {
console.log(vid.duration);
});