How to get iframe content and extract into textarea using JavaScript
<p><button id="btn">run iframe</button></p>
<iframe id="iframe"></iframe>
<script type="text/javascript">
document.getElementById("btn").addEventListener('click',
function runcode(){
var editor="<marquee>hello friends </marquee>"
var doc = document.getElementById('iframe').contentWindow.document;
doc.open();
doc.write(editor);
doc.close();
});
</script>
<p><button id="btn2">get content</button></p>
<textarea id="output" style="width:100%; height:200px"></textarea>
<script>
document.getElementById("btn2").addEventListener('click',
function getcode(){
var doc1 = document.getElementById('iframe').contentWindow.document;
var doc_content= doc1.getElementsByTagName("HTML")[0].innerHTML;
document.getElementById("output").value=doc_content;
});
</script> 
© 2025 Manajmnt code
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