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run javascript in iframe Code Example
how to get element in iframe using javascript 
const iframe = document.getElementById("myIframe");

const iWindow = iframe.contentWindow;
const iDocument = iWindow.document;

// accessing the element
const element = iDocument.getElementsByTagName("p")[0];
element.style.color = "green";
Source: reactgo.com
use javascript to control iframe elements 
<iframe id="myIFrame" src="thispage.html"
    width="100%" height="600"
    frameBorder="2">
</iframe>

// Get the iframe
const iFrame = document.getElementById('myIFrame');

// Let's say that you want to access a button with the ID `'myButton'`,
// you can access via the following code:
const buttonInIFrame = iFrame.contentWindow.document.getElementById('myButton');

// If you need to call a function in the iframe, you can call it as follows:
iFrame.contentWindow.yourFunction();
Source: stackoverflow.com
js set iframe src 
<script type="text/javascript">
function iframeDidLoad() {
    alert('Done');
}

function newSite() {
    var sites = ['http://getprismatic.com',
                 'http://gizmodo.com/',
                 'http://lifehacker.com/']

    document.getElementById('myIframe').src = sites[Math.floor(Math.random() * sites.length)];
}    
</script>
<input type="button" value="Change site" onClick="newSite()" />
<iframe id="myIframe" src="http://getprismatic.com/" onLoad="iframeDidLoad();"></iframe>
Source: stackoverflow.com
run javascript in iframe 
let script=document.createElement('script');
script.innerText=`your script`
document.querySelector('iframe').appendChild(script)
run javascript in iframe 
var iframe = document.getElementById('frameID'),
    iframeWin = iframe.contentWindow || iframe,
    iframeDoc = iframe.contentDocument || iframeWin.document;

window.hello = function () {
    alert('hello from owner!');
};

$(iframeDoc).ready(function (event) {
    iframeDoc.open();
    iframeDoc.write('iframe here');
    iframeDoc.write('\<script>alert("hello from iframe!");\<\/script>');
    iframeDoc.write('\<script>parent.hello();\<\/script>');
    iframeDoc.close();
});
Source: jsfiddle.net



Javascript

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Type:
 Code Example
Category:
 Coding
Sub Category:
 Code Example
Uploaded by:
 Admin
Views:
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