這個code如果有很多視頻，該如何簡化？

Question

var video22 = document.getElementById("video22");var intervalID = null;var time = 0;var speed = 15;
video22.onloadedmetadata = function() {    var duration = video22.duration;
    intervalID = setInterval(function(){
        time++;        if (time / speed <=  duration){
            video22.currentTime = time / speed;
        }else{
            clearInterval(intervalID);
            intervalID = null;
        }
    },1000 / speed);
};
video22.addEventListener('click', function(){
    clearInterval(intervalID);
    intervalID = null;    this.play();
});

想問一下這個
如果這個code如果有很多視頻
我該如何簡化呢
因為這樣有幾個視頻就要幾段這樣的code

Answer 1

var list=docuemnt.querySeclectotAll("video");for(var i=0,len=list.length;i<len;i++){&nbsp; &nbsp; list[i].onloadedmetadata=function(){&nbsp; &nbsp; &nbsp; &nbsp; .....&nbsp; &nbsp; }&nbsp; &nbsp; list[i].addEventListener('click', function(){&nbsp; &nbsp; &nbsp; &nbsp; ...&nbsp; &nbsp; })}这样？