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<!DOCTYPE html>
<html>
<body>
<form id="myForm">
<textarea id="myTextarea" rows="4" cols="50">
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</textarea>
</form>
<p>Click the button to display the id of the form the text area belongs to.</p>
<button type="button" onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
  var x = document.getElementById("myTextarea").form.id;
  document.getElementById("demo").innerHTML = x;
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_textarea_form by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 18:17:02 GMT -->
</html>