Key Event

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Write a javascript code to implement onkeyup and onkeydown Event .

<html>
  <head>
    <title>Key Event Demo</title>
      <script>

        function down()
        {
            document.frm1.b1.value="key Down";
        }
        function up()
        {
            document.frm1.b1.value="key up";
        }

      </script>
    </head>
  <body>

<form name="frm1">

      <input type="text" name="t1" value="click" onkeydown="down()" onkeyup="up()">

      <input type="button" name="b1" value="Press key">
       
    </form>        
  </body>
</html>

Output:

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