Conditional Programs

If usage in program


<!DOCTYPE html>
<html>
<body>

<p>
    Click the button <br> <br>
 if the time is less than 18pm <br>
 "Have a nice day" greeting. <br> <br>
 
    If the time is greater than 18pm <br>  
 greeting will not be displayed. <br>
</p>

<button onclick="Function()">Click me </button>

<p id="demo"> </p>

<script>
    function Function() {

      var x = "";

      var time = new Date().getHours();

      if (time < 18) {

        x = "Have a nice day";

      }

      document.getElementById("demo").innerHTML = x;
    }
</script>

</body>
</html>