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How do I play an iframe mp4 on click using jQuery?

Trying to play an mp4 iframe on click of a button, but I don't know how.
I tried the below but didn't work
$(this).find("iframe").trigger("play");
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<iframe src="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" width="640" height="360" frameborder="0"
allow="autoplay; fullscreen; picture-in-picture" allowfullscreen></iframe>

you made a typo when writing the video source, maybe mp4 not just mp.
you can try this:
$(document).ready(function() {
$('#play-video').on('click', function(e) {
$("#video")[0].src += "&autoplay=1";
e.preventDefault();
});
});
in document HTML
<a id="play-video" href="#">Title : Elephants Dream</a><br />
<iframe id="video" src="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" width="640" height="360" frameborder="0" allow="autoplay; fullscreen; picture-in-picture" allowfullscreen></iframe>
My codepen : https://codepen.io/maulanadata/pen/mdKxgme

How to append Iframe in div using javascript

I was trying to append an Iframe embed to a div element using javascript but I'm getting an error when trying to append it using innerHtml. Is there any way to append an Iframe in a div using javascript. My current code is attached below. Thanks in advance.
function addCode() {
document.getElementById("add_to_me").innerHTML +=
"<iframe width="
1263 " height="
480 " src="
https: //www.youtube.com/embed/zogtwLQQEfY" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>";
}
<div id="add_to_me">
<h3> Heading</h3>
<!--embed Iframe here-->
</div>

The string contains attributes that are wrapped with double quotes - ". Wrap the entire string with single quotes - '.
document.getElementById("add_to_me").innerHTML +=
'<iframe width="1263" height="480" src="https://www.youtube.com/embed/zogtwLQQEfY" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>';
<div id="add_to_me">
<h3> Heading</h3>
<!--embed Iframe here-->
</div>

Play video in a seperate div on link click

I'm trying to play a video on a seperate div on link click but whenever I click the link instead of playing inside the div it plays on full screen and the link changes to the file path.
$('.link').on('click', function(event) {
event.preventDefault();
var url =$(this).attr("href");
$("#frame").attr("src", url);
})
<div class="live1452">
<iframe allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen id="frame"></iframe>
</div>
<div class="title">
{{l.title}}
</div>

It seems as if it following the link, it shouldn't as you are calling event.preventDefault(), if there were other events wrapping that one you should have to also call event.stopPropagation() but we lack information to know if this could be the case.
I would not use iframe for this, you could try using the html5 video element instead, here is a code snippet:
$('.link').on('click',function(event) {
event.preventDefault();
event.stopPropagation();
var url =$(this).attr("href");
$("#video").attr("src", url);
$("#video")[0].play();
});
video {
width: 300px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="live1452">
<video controls allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen id="video"></video>
</div>
<div class="title">
Sample video
</div>

Youtube embeded code is validation using Regex in Javascript or Jquery

I need to validate an embedded code is valid or not. if anyone has an idea that how to check with regex. below code only check URL. but I want to check all string. The below code is not working.
var P = /^(?:https?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:embed\/|v\/|watch\?v=|watch\?.+&v=))((\w|-){11})(?:\S+)?$/
P.test('<iframe width="560" height="315" src="https://www.youtube.com/embed/_sWcXaic-bw" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>');
P variable only checks URL.
It's working
P.test('https://www.youtube.com/embed/_sWcXaic-bw');
but only check URL not the full tag is not working

I am trying this below code and it's working, but I don't know is valid or not. Please post if you have any valid solution for this.
var P = /^(?:https?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:embed\/|v\/|watch\?v=|watch\?.+&v=))((\w|-){11})(?:\S+)?$/
var content = '<p>'+'<iframe width="560" height="315" src="https://www.youtube.com/embed/_sWcXaic-bw" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>'+'</p>'
if($(content).find("iframe").length > 0){
var srccheck = $(content).find("iframe").attr("src")
if(P.test(srccheck)){
console.log("valid")
}else{
console.log("not valid")
}
}else{
console.log("not valid")
}

Load iFrame using Script

I want a
<iframe width="640" height="360" src="//www.youtube.com/embed/-Uwjt32NvVA?rel=0&autoplay=1" frameborder="0" allowfullscreen style="float: right;"></iframe>
to load after a div is clicked on.
This is because i don't want it to load (since it is autoplay) before the user navigates to it. It is on autoplay because I can't click on the iFrame video in chrome due to chrome bug.
Something like onclick="loadvideo();" will do
Thanks

Use Jquery .load();
function loadVideo() {
$('#div').load('<iframe width="640" height="360" src="//www.youtube.com/embed/-Uwjt32NvVA?rel=0&autoplay=1" frameborder="0" allowfullscreen style="float: right;"></iframe>');
}

Append it to a div once the user clicks on the load button:
<div id='videoDiv'></div>
<a id='loadVideoButton'>LOAD</a>
<script>
var loadVideo = function() {
$('#videoDiv').append("<iframe width="640" height="360" src="//www.youtube.com/embed/-Uwjt32NvVA?rel=0&autoplay=1" frameborder="0" allowfullscreen style="float: right;"></iframe>");
};
$("#loadVideoButton").click(loadVideo());
</script>

This will do the trick
$('div').click(function(){
$(this).html("<iframe width=\"640\" height=\"360\" src=\"//www.youtube.com/embed/-Uwjt32NvVA?rel=0&autoplay=1\" frameborder=\"0\" allowfullscreen style=\"float: right;\"></iframe>"
});
See this js fiddle