What is HTML | DOM IFrame contentWindow Property?

In this article, we will learn HTML | DOM IFrame contentWindow Property,This free HTML tutorial for complete beginners will help you learn HTML from scratch.

HTML | DOM IFrame contentWindow Property

Q: How to use HTML | DOM IFrame contentWindow Property in HTML?

The IFrame contentWindow Property in HTML DOM is used to return the Window object generated by an iframe element

HTML | DOM IFrame contentDocument Property

The IFrame contentWindow Property in HTML DOM is used to return the Window object generated by an iframe element. It can be used in the host window to access the document object that belongs to a frame or iframe element.

Syntax:

iframeObject.contentWindow

Return Value: It returns reference Window object generated by an iframe element.

Example:

html

<!DOCTYPE html>
<html>
 
<head>
    <title>
        HTML DOM iframe contentWindow Property
    </title>
</head>
 
<body style="text-align:center;">
 
    <h1>w3wiki</h1>
 
    <h2> 
        HTML DOM iframe contentWindow Property 
    </h2>
 
    <iframe src="https://ide.w3wiki.net/index.php"
            id="GFG"
            height="200" 
            width="400">
    </iframe>
 
    <br>
    <br>
 
    <button onclick="Beginner()">
        Submit
    </button>
 
    <script>
        function Beginner() {
            var iframeID = document.getElementById("GFG");
 
            var iframeCW = (iframeID.contentWindow || iframeID.contentDocument);
 
            if (iframeCW.document) iframeCW = iframeCW.document;
            iframeCW.body.style.border = "5px solid red";
        }
    </script>
</body>
 
</html>