HTML | DOM Output form Property

The Output form Property in HTML DOM is used for returning a reference to the form where an <Output> Element belongs to. It is read-only Property that returns a form object on success.



Note: There is no property values in HTML DOM Output form Property.

Return value: A reference to <form> element containing the <output> element. If <output> element is not in a form, null is returned






<!DOCTYPE html>
    <title>HTML DOM output form Property </title>
        body {
            text-align: center;
        h1 {
            color: green;
    <h2>HTML DOM Output Form Property</h2>
    <form id="form1" oninput="sumresult.value = parseInt(A.value) 
                + parseInt(B.value) + parseInt(C.value)">
        <input type="number" name="A" value="50" /> +
        <input type="range" name="B" value="0" /> +
        <input type="number" name="C" value="50" />
        <br /> Submit Result:
        <output id="geeks" name="sumresult" for="A B C"></output>
    <button onclick="myGeeks()">submit</button>
    <h2 id="sudo"></h2>
        function myGeeks() {
            var g = document.getElementById("geeks");
            document.getElementById("sudo").innerHTML = g;


  • Before Clicking On Button:
  • After Clicking On Button:

Supported Browsers: The browsers supported by HTML DOM Output form Property are listed below:

  • Google Chrome
  • Internet Explorer
  • Firefox
  • Opera
  • Safari

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