“JS Set iframe src” Respostas de código

como obter elemento no iframe usando 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";
Thoughtful Turtle

Use JavaScript para controlar os elementos do iFrame

<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();
Idaho Potato

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>
FloatDev

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