How to insert HTML content into an iFrame using jQuery?

Here is the task to insert HTML content into an iFrame using jQuery. To do so, we can use the jQuery contents() method.

The .contents() method: It returns all the direct children, including text and comment nodes for the selected element. 

Syntax:

$(selector).contents()

• Find the iframe in the body section.
• Get the value to be inserted in the iframe in the body section
• Place the value in the iframe

jQuery code to show the working of this approach:

Example 1:

html

<script src=
"https://code.jquery.com/jquery-1.12.4.min.js">
</script>
<style type="text/css">
    textarea,
    iframe {
        display: block;
        margin: 10px 0;
    }

    iframe {
        width: 500px;
        border: 1px solid #000000;
    }
</style>
<h1 style="color:green;">
    GeeksforGeeks
</h1>
<h3>
    How to insert HTML content into an iFrame using jQuery
</h3>
<textarea rows="2" cols="40" style="text-align:center;">
        GEEKSFORGEEKS - A computer science portal for geeks.
    </textarea>
<button type="button" onclick="updateIframe()">
    Click to Insert
</button>
<iframe style="text-align:center;" id="myframe"></iframe>
<script type="text/javascript">
    function updateIframe() {
        var myFrame = $("#myframe").contents().find('body');
        var textareaValue = $("textarea").val();
        myFrame.html(textareaValue);
    }
</script>

Output:

Example 2:

html

<script src="https://code.jquery.com/jquery-1.12.4.min.js">
</script>
<style type="text/css">
    iframe {
        width: 500px;
        border: 1px solid #000000;
    }
</style>
<h1 style="color:green;">
    GeeksForGeeks
</h1>
<h3>How to insert HTML content
    into an iFrame using jQuery</h3>

<h4>Text to be insert : "GEEKSFORGEEKS
    - A computer science portal for geeks."</h4>
<iframe style="text-align:center;" id="iframe">
</iframe>
<script>
    $("#iframe").ready(function() {
        var body = $("#iframe").contents().find("body");
        body.append(
        'GEEKSFORGEEKS - A computer science portal for geeks.');
    });
</script>

Output: