Javascript DOM HTML Textarea form Property

Introduction

Return the id of the form containing the text area: 

var x = document.getElementById("myTextarea").form.id;

Click the button to display the id of the form the text area belongs to.

View in separate window 

<!DOCTYPE html>
<html>
<body>

<form id="myForm">
<textarea id="myTextarea" rows="4" cols="50">
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</textarea>
</form>// www. j av  a 2 s .co m
<button type="button" onclick="myFunction()">Test</button>

<p id="demo"></p>

<script>
function myFunction() {
  var x = document.getElementById("myTextarea").form.id;
  document.getElementById("demo").innerHTML = x;
}
</script>

</body>
</html>

The form property returns a reference to the form that contains the text area.

This property returns a form object on success.

If the text area is not in a form, null is returned




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