Javascript Reference - HTML DOM Button Object








The Button object represents an HTML <button> element.

Example

We can access a <button> element by using getElementById().


<!DOCTYPE html>
<html>
<body>
<button type="button" id="myBtn" onclick="myFunction()">test</button>
<p id="demo"></p>
<script>
function myFunction() {<!--  www.j av  a 2  s. co  m-->
    var x = document.getElementById("myBtn");
    x.disabled = true;
}
</script>

</body>
</html>

The code above is rendered as follows:





Example 2

We can create a <button> element by using the document.createElement() method.


<!DOCTYPE html>
<html>
<body>
<button onclick="myFunction()">test</button>
<script>
function myFunction() {<!--from   www  .j  av a  2  s. c o m-->
    var x = document.createElement("BUTTON");
    var t = document.createTextNode("Click me");
    x.appendChild(t);
    document.body.appendChild(x);
}
</script>

</body>
</html>

The code above is rendered as follows:





Button Object Properties

Property Description
autofocus Sets or gets whether a button can auto focus when the page loads
disabled Disable or enable a button
form Get the form that contains a button
formAction Sets or gets the formaction attribute of a button
formEnctype Sets or gets the formenctype attribute of a button
formMethod Sets or gets the formmethod attribute of a button
formNoValidate Sets or gets whether the form-data should be validated, on submission
formTarget Sets or gets the formtarget attribute of a button
name Sets or gets the name attribute of a button
type Sets or gets the type of a button
value Sets or gets the value attribute of a button

Standard Properties and Events

The Button object supports the standard properties and events.