topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

talk show tell print

basic-javascript-04-ch4-examp1.htm / htm



  <html>
  <head>
  <script language="JavaScript" type="text/javascript">
  function checkCharType(charToCheck)
  {
     var returnValue = "O";
     var charCode = charToCheck.charCodeAt(0);
  
     if (charCode >= "A".charCodeAt(0) && charCode <= "Z".charCodeAt(0))
     {
        returnValue = "U";
     }
     else if (charCode >= "a".charCodeAt(0) && charCode <= "z".charCodeAt(0))
     {
        returnValue = "L";
     }
     else if (charCode >= "0".charCodeAt(0) && charCode <= "9".charCodeAt(0))
     {
        returnValue = "N";
     }
     return returnValue;
  }
  </script>
  <head>
  
  <body>
  <script language="JavaScript" type="text/javascript">
  
  var myString = prompt("Enter some text","Hello World!");
  switch (checkCharType(myString))
  {
     case "U":
        document.write("First character was upper case");
        break;
     case "L":
        document.write("First character was lower case");
        break;
     case "N":
        document.write("First character was a number");
        break;
     default:
        document.write("First character was not a character or a number");
  }
  </script>
  </body>
  </html>
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.