How To Get Size Of Youtube Video Player Javascript

How to embed YouTube videos fugitive bug on the loading of your page

We take seen in previous occasions how loading speed is a crucial SEO variable that tin can push back your site from the first positions of SERPs. However, the need of reducing to a minimum a spider web'south size and the requests made to the server accept usa to delete elements that could enrich our contents and make them more than entertaining for users and so that they spend more fourth dimension on the page. Nosotros are talking about YouTube videos.

It is very like shooting fish in a barrel to add videos to a website. There are many on YouTube and they tin can be customized to adapt them to the format of our site. But when we analyse a webpage that includes videos, we tin can encounter some disadvantages: videos are boring and heavy even if we are not providing them directly from our server.

Adding YouTube videos does not simply increment notably the number of requests made to the server, merely it also increases the total size of the page with over 500 kb, which affects considerably the loading speed of the web. Fortunately, there is a way to solve this that can turn all these requests into a single one per video, which decreases the size to about 50 kb. In the post-obit we explain how.

Loading the files from the player when clicking on the video

Each YouTube video includes some preview images that we can export to our site using Javascript. The idea is to replace the original iframe-where the role player is hosted-by a preview of the video. Then we will add together a button that simulates YouTube's "play" button.

When a user clicks on "play", the prototype will immediately change to YouTube player. This means that the resources are only loaded when the user clicks on the video, not when the page is loaded.

As you can come across below, the effect is almost invisible to the user:

Come across the Pen LkjERp past Agustin (@abaraza) on CodePen.

How to embed YouTube videos on your site using this method

The code is made of 3 parts that we have to add to the webpage where the videos will be played.

HTML

Showtime of all, yous have to identify that chunk of HTML where the video will exist shown. You have to include the unique ID of the YouTube video to be watched under the attribute "information-id".

                <div class="contenedor">                                  <div class="reproductor" data-id="                QMgSELBA7kw                "></div>                </div>              

The unique ID comes from the URL that appears when you play the YouTube video:

https://www.youtube.com/watch?v=QMgSELBA7kw

To insert more than than one video we have to copy the HTML changing the ID accordingly.

CSS

To requite shape and make the video adapted to the browser'south windows we have to add the post-obit styles to our CSS file, or straight on the page using the tags <way></style>:

                <style>                .contenedor{                                  display: block;                                                  margin: 20px machine;                                                  width: 100%;                                                  max-width: 600px;                }                .reproductor {                                                  display: block;                                                  width: 100%;                                                  acme: 100%;                                                  padding-bottom: 56.25%;                                                  overflow: hidden;                                                  position: relative;                                                  cursor: hand;                                                  cursor: arrow;                                }                img.imagen-previa {                                                  display: block;                                                  left: 0;                                                  bottom: 0;                                  margin: auto;                                                  max-width: 100%;                                                  width: 100%;                                                  position: absolute;                                                  right: 0;                                                  tiptop: 0;                                                  height: car                                }                div.youtube-play {                                                  height: 64px;                                                  width: 64px;                                                  left: 50%;                                                  acme: l%;                                                  margin-left: -36px;                                                  margin-pinnacle: -36px;                                  opacity:0.7;                                  position: absolute;                                                  background:   url("https://cdn2.iconfinder.com/data/icons/social-icons-color/512/youtube-64.png") no-repeat;                                }                div.youtube-play:hover{                                  opacity:1;                                }                #youtube-iframe {                                                  width: 100%;                                                  height: 100%;                                                  position: absolute;                                                  superlative: 0;                                                  left: 0;                                }                </style>              

Javascript

Finally, for everything to work, nosotros have to include the following Javascript to the page where the videos will be displayed. We can include it between the tags <script></script> or add together it to a JS file that we volition grab from the webpage.

                <script>                (function() {                                  var five = document.getElementsByClassName("reproductor");                                  for (var north = 0; n < v.length; n++) {                                  var p = document.createElement("div");                                  p.innerHTML = labnolThumb(v[n].dataset.id);                                  p.onclick = labnolIframe;                                  v[north].appendChild(p);                                  }                })();                function labnolThumb(id) {                                  return '<img class="imagen-previa" src="//i.ytimg.com/vi/' + id + '/hqdefault.jpg"><div class="youtube-play"></div>';                }                function labnolIframe() {                                  var iframe = document.createElement("iframe");                                  iframe.setAttribute("src", "//world wide web.youtube.com/embed/" + this.parentNode.dataset.id + "?autoplay=one&autohide=2&border=0&wmode=opaque&enablejsapi=1&controls=0&showinfo=0");                                  iframe.setAttribute("frameborder", "0");                                  iframe.setAttribute("id", "youtube-iframe");                                  this.parentNode.replaceChild(iframe, this);                }                </script>              

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Source: https://internetrepublic.com/how-to-embed-youtube-videos-avoiding-problems-on-the-loading-of-your-page/

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