Javascript/Error.html at main · Vishuu005/Javascript · GitHub

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<!DOCTYPE html>
<html>
  <body>
    <p>Please input a number between 5 and 10:</p>

    <input id="demo" type="text" />
    <button type="button" onclick="myFunction()">Test Input</button>
    <p id="p01"></p>

    <script>
      function myFunction() {
        const message = document.getElementById("p01");
        message.innerHTML = "";
        let x = document.getElementById("demo").value;
        try
        {
          if (x == "") throw "empty";
          if (isNaN(x)) throw "not a number";
          x = Number(x);
          if (x < 5) throw "too low";
          if (x > 10) throw "too high";
        }
        catch (err)
        {
          message.innerHTML = "Input is " + err;
        }
      }
    </script>
  </body>
</html>