The <iframe> tag specifies an inline frame. It allows us to load a separate HTML file into an existing document.
Code snippet:
function getIframeContent(frameId) {
let frameObj =
document.getElementById(frameId);
let frameContent = frameObj.
contentWindow.document.body.innerHTML;
alert("frame content : " + frameContent);
}
Some of the definitions are given below:
- getIframeContent(frameId): It is used to get the object reference of an iframe.
- contentWindow: It is a property that returns the window object of the iframe.
- contentWindow.document: It returns the document object of the iframe window.
- contentWindow.document.body.innerHTML: It returns the HTML content of the iframe body.
Example: The following example demonstrates to inclusion of separate HTML files into existing documents.
html
<!DOCTYPE html><html>
<head>
<title>
How to get HTML content of
an iFrame using javascript?
</title>
</head>
<body>
<iframe id="frameID" src="ContentOfFrame.html">
</iframe>
<a href="#" onclick="getIframeContent('frameID');">
Get the content of Iframe
</a>
<script>
function getIframeContent(frameID) {
let frameObj =
document.getElementById(frameID);
let frameContent = frameObj
.contentWindow.document.body.innerHTML;
alert("frame content : " + frameContent);
}
</script>
</body>
</html>
|
ContentOfFrame.html: The following example demonstrates the HTML code content of file “ContentOfFrame.html”.
html
<!DOCTYPE html> <html>
<body>
GeeksForGeeks: A Computer
Science Portal For Geeks
(It is loaded inside the
iframe)
</body>
</html>
|
Output:
Output