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HTML | DOM Input Button Object

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  • Last Updated : 24 Aug, 2022
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The DOM Input Type Button Object is used to represent the HTML <input> element with type=”button”. The Input Type Button element is accessed by getElementById().

Syntax:  

document.getElementById("ID");

Where “id” is the ID assigned to the “input” tag.

Example-1:  

HTML




<!DOCTYPE html>
<html>
<head>
    <style>
        h1 {
            color: green;
        }
    </style>
</head>
<body>
    <h1>GeeksForGeeks</h1>
    <h2> DOM Input Button Object </h2>
   
    <!-- Assigning button id -->
    <input type="button" id="GFG" onclick="myGeeks()" value="Submit">
    <p id="sudo"></p>
 
    <script>
        function myGeeks() {
           
            // accessing 'button' id.
            var g = document.getElementById("GFG").value;
            document.getElementById("sudo").innerHTML =
              "Value od input type button is:" + g;
        }
    </script>
</body>
</html>

Output:
Before Clicking On Button: 

After Clicking On Button: 

Example-2: Input button Object can be created by using the document.createElement method. 

HTML




<!DOCTYPE html>
<html>
<head>
    <style>
        h1 {
            color: green;
        }
         
        #GFG {
            margin-left: 45%;
            margin-top: 30px;
        }
    </style>
</head>
<body>
    <h1>GeeksForGeeks</h1>
    <h2> DOM Input Button Object </h2>
    <h3 style="color:green;">
      Click the Button to Create the Button</h3>
    <button onclick="myGeeks()">Submit</button>
    <script>
        function myGeeks() {
            var g = document.createElement("INPUT");
            g.setAttribute("type", "button");
            g.setAttribute("value", "Click me");
            g.setAttribute("id", "GFG");
            document.body.appendChild(g);
        }
    </script>
</body>
</html>

Output:
Before Clicking On Button: 

After Clicking on Button: 

Supported Browsers: The browser supported by DOM Input button Object are listed below: 

  • Google Chrome 1 and above
  • Firefox 1 and above
  • Opera
  • Safari 1 and above
  • Edge 12 and above

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