Answers for "how to embed a youtube video in javascript"

embed video by javascript

var obj = {"video": {
  "value": "<iframe title='YouTube video player' type=\"text/html\" width='640' height='390' src='http://www.youtube.com/embed/W-Q7RMpINVo' frameborder='0' allowFullScreen></iframe>"
}}
document.write(obj.video.value);

HOW TO USE A video on a html website from youtube

<iframe width="560" height="315" src="https://www.youtube.com/embed/thatthingonvideourl" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>