HTML | DOM KeyboardEvent location Property

Last Updated : 06 Jul, 2022

The KeyboardEvent location property is used for returning a number that indicates the location of a key on the keyboard or device. The KeyboardEvent location property can be used on the onkeydown and onkeyup events but not on onkeypress.

The number returned by KeyboardEvent location property is represented by 4 constants:

Constant	Location	Description
0	DOM_KEY_LOCATION_STANDARD	This value represents almost every key on the keyboard, e.g. “B”, “R”, “SPACE” or “8”.
1	DOM_KEY_LOCATION_LEFT	This value represents a left key, e.g. the left “CTRL” key or left “ALT” key.
2	DOM_KEY_LOCATION_RIGHT	This value represents a right key, e.g. the right “CTRL” key or right “ALT” key.
3	DOM_KEY_LOCATION_NUMPAD	This value represents a numeric key or a numpad key.

Syntax:

event.location

Below program illustrates the KeyboardEvent location property :

Example-1: Getting the location of a key.

html

<!DOCTYPE html>
<html>
 
<head>
    <title>KeyboardEvent location Property in HTML
  </title>
    <style>
        div {
            border: 3px solid green;
            height: 100px;
            width: 500px;
        }
         
        h1 {
            color: green;
        }
         
        h2 {
            font-family: Impact;
        }
         
        body {
            text-align: center;
        }
    </style>
</head>
 
<body>
 
    <h1>GeeksforGeeks</h1>
    <h2>KeyboardEvent location Property</h2>
 
    <p>To return the location of a key,
      insert some character in the field.</p>
 
    <input type="text" 
           size="20" 
           onkeydown="keyboard(event)">
 
    <p id="test"></p>
 
    <script>
        function keyboard(event) {
           
            //  Return location of key.
            var gfg = event.location;
            document.getElementById("test").innerHTML = 
              "Location of the pressed key is : " + gfg;
        }
    </script>
 
</body>
 
</html>