HTML | DOM Button formMethod Property

Last Updated : 31 Aug, 2022

The HTML DOM Button formMethod Property is used to set or return the value of the formMethod attribute of a Button Element. The formMethod attribute is used to specify the HTTP method used to send data while submitting the form. There are two kinds of HTTP Methods, which are GET and POST. This attribute overrides the method attribute of a <form> element.

Syntax:

It returns the Button formMethod property.

ButtonObject.formMethod

It is used to set the Button formMethod property.

ButtonObject.formMethod = get|post

Property Values:

GET: In the GET method, after the submission of the form, the form values will be visible in the address bar of the new browser tab.
POST: In the post method, after the submission of the form, the form values will not be visible in the address bar of the new browser tab as it was visible in the GET method.

Return Value: It returns a string value which represents the HTTP method used to send data while submitting the form.

Example 1: This example illustrates how to return Button formMethod Property.

HTML

<!DOCTYPE html>
<html>
<head>
    <title>
        HTML DOM Button formMethod Property
    </title>
</head>
<body style="text-align:center;">
    <h1> 
        GeeksForGeeks 
    </h1>
    <h2> 
        HTML DOM Button formMethod Property 
    </h2>
    <form action="#" method="get" target="_self">
        <button type="submit"
                id="Geeks"
                name="myGeeks"
                value="Submit @ geeksforgeeks"
                formenctype="multipart/form-data"
                formTarget="_blank"
                formMethod="Get"
                Formnovalidate>
            Submit </button>
    </form>
 
    <p>
        click on below button to return the Property
    </p>
 
    <button onclick="myGeeks()">
        Click Here!
    </button>
    <p id="GFG" style="font-size:25px;"></p>
    <!-- Script to return formMethod Property -->
    <script>
        function myGeeks() {
            var btn = document.getElementById("Geeks").formMethod;
            document.getElementById("GFG").innerHTML = btn;
        }
    </script>
</body>
</html>

Output:

Before Clicking On Button:

After Clicking On Button:

Example 2: This example illustrates how to return Button formMethod property.

HTML

<!DOCTYPE html>
<html>
<head>
    <title>
        HTML DOM Button formMethod Property
    </title>
</head>
<body style="text-align:center;">
    <h1> 
        GeeksForGeeks 
    </h1>
    <h2> 
        HTML DOM Button formMethod Property 
    </h2>
    <form action="#" method="get" target="_self">
        <button type="submit" 
                id="Geeks"
                name="myGeeks"
                value="Submit @ geeksforgeeks"
                formenctype="multipart/form-data"
                formTarget="_blank" 
                formMethod="Get" 
                Formnovalidate>
            Submit </button>
    </form>
    <p>
        click on below button to set the Property
    </p>
    <button onclick="myGeeks()">
        Click Here!
    </button>
    <p id="GFG" style="font-size:25px;"></p>
    <!-- Script to set formMethod Property -->
    <script>
        function myGeeks() {
            var btn = document.getElementById(
              "Geeks").formMethod = "post";
           
            document.getElementById("GFG").innerHTML =
              "The value of the formmethod attribute" +
              " was changed to " + btn;
        }
    </script>
</body>
</html>