What is onkeydown event in JavaScript?

The onkeydown event triggers when a key is pressed. You can try to run the following code to learn how to work with an onkeydown event in JavaScript −

Example

<html>
   <head>
      <script>
         <!--
            function sayHello() {
               alert("A key is pressed.")
            }
         //-->
      </script>
   </head>
   <body>
      <input type = "text" onkeydown = "sayHello()">
   </body>
</html>

Updated on: 19-Jun-2020

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