Make video autoplay using React

I wouldn't use <iframe> cuz when you go to Youtube you still have to click to play. I would use a library called react-player

import ReactPlayer from "react-player";

<ReactPlayer
  url={props.url}
  playing={true}
  width={props.width}
  height={props.height}
/>

And it will autoplay :)

According to 2018 changes in youtube policies, they've omitted option to autoplay videos with sound. If you want to autoplay it muted, there's still an option to do it with an iframe:

<iframe src='https://www.youtube.com/embed/hEnr6Ewpu_U?autoplay=1&mute=1'
        frameBorder='0'
        allow='autoplay; encrypted-media'
        allowFullScreen
        title='video'
/>