HTML DOM Keygen Object
The HTML DOM keygen object is used to represent the <keygen> element. The <keygen> element will be created using HTML DOM document.createElement() method and accessed by getElementById(). It is new in HTML5.
Syntax:
document.getElementById("ID");Property Values
- autofocus: It is used to set or return the keygen element get focus or not when the page loads.
- challenge: It is used to set or return the value of the challenge attribute of a keygen element.
- disabled: It is used to set or return that whether the keygen element is disabled or not.
- form: It returns the reference of the form that contains the keygen element.
- keytype: It is used to set or return the value of the keytype attribute of the keygen element.
- name: It is used to set or return the value of the name attribute of a keygen element.
- type: It returns the type of form element a keygen field is.
Example 1: The following example demonstrates accessing an <keygen> element.
HTML
<!DOCTYPE html><html> <head> <style> h1 { color: green; } h2 { font-family: Impact; } body { text-align: center; } </style></head><body> <h1>GeeksforGeeks</h1> <h2>HTML DOM Keygen Object</h2> <br> <form id="myGeeks"> Username: <input type="text" name="uname"> <br><br> Encryption: <keygen id="Geeks" form="myGeeks" name="secure" autofocus> <input type="submit"> </form> <p> To find out whether the keygen element automatically gets focus on page load or not, click the "Check" button. </p> <button onclick="My_focus()">Check</button> <p id="test"></p> <script> function My_focus() { var d = document.getElementById("Geeks").autofocus; document.getElementById("test").innerHTML = d; } </script></body></html> |
Output:
Creating a keygen Object:
document.createElement()
Example 2:
HTML
<!DOCTYPE html><html><head> <style> h1 { color: green; } h2 { font-family: Impact; } body { text-align: center; } </style></head><body> <h1>GeeksforGeeks</h1> <h2>HTML DOM Keygen Object</h2> <br> <form id="myGeeks"> Username: <input type="text" name="uname"> <br><br> Encryption: <input type="submit"> </form> <p> Click on the below "create" button to create a Keygen Element. </p> <button onclick="create()">Create</button> <p id="test"></p> <script> function create() { var x = document.createElement("KEYGEN"); x.setAttribute("name", "security"); document.body.appendChild(x); alert("A kEYGEN element is created"); } </script></body></html> |
Output:
Supported Browsers:
- Google Chrome
- Opera
- Internet Explorer not supported
- Firefox
- Apple Safari
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