Links

Lists

Latest Updates

Ruby On Rails List
Python list
Advanced Java
The JavaScript List
Apache Users
Full Disclosure
Linux Security

Search the archives!
Having a development problem? Ask eDevelopment.org forums!

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Javascript] Newbie- Still having switch statement problems i n IE 5.5

  • From: javascript@xxxxxxxxxx (Mckinney, Lori K)
  • Subject: [Javascript] Newbie- Still having switch statement problems i n IE 5.5
  • Date: Fri, 22 Mar 2002 08:31:44 -0600
Steve,

It appears to me that the problem is your switch statement is switching on a number but all of your case values evaluate to a Boolean.  So if the value of secCtr is 14 for example, the switch looks essentially like this:

switch (14)
	case false:
		...
		break;
	case false:
		...
		break;
	case false:
		...
		break;
	case false:
		...
		break;
	case false:
		...
		break;
	case true:
		...
		break;
etc
}

Since 14 does match in value and datatype true or false, it will always fall through to the default.

I changed the switch(secCtr) to switch(true) and your code appeared to work for me on IE 5.5.

Lori

-----Original Message-----
From: Steve [mailto:extstarrfam@xxxxxxxxxxxxxxxx]
Sent: Thursday, March 21, 2002 5:17 PM
To: javascript@xxxxxxxxxx
Subject: [Javascript] Newbie- Still having switch statement problems in
IE 5.5


I have tried to make the switch statement work with and
without the break statement and with and without a
default value.  Is there a bug in IE 5.5 that will not
allow this to work?  If I use if statements instead of
a switch statement, it work.  I am not getting a syntax
error message.  Here is the code minus the HTML
declaration:

<head>
<script language="JavaScript">
<!--
// please keep these lines on when you copy the source
// made by: Nicolas
// Altered by S. K. Starr 11/18/02.
var pace = 0;

function UpdateClock() {
 if(pace) {
  clearTimeout(pace);
  pace  = 0;
 }
 // I could not get the seconds placed into a variable
and
 // make it work.
 var theDate = new Date();
 var secCtr = theDate.getSeconds();

 // Flashing text display code starts here
 switch (secCtr) {
     case secCtr <= 2:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 2 && secCtr <= 5:
  document.theForm.textDisplay.value = "3 thru 5";
  break;
     case secCtr > 5 && secCtr <= 7:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 7 && secCtr <= 10:
  document.theForm.textDisplay.value = "8 thru 10";
  break;
     case secCtr > 10 && secCtr <= 12:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 12 && secCtr <= 15:
  document.theForm.textDisplay.value = "13 thru 15";
  break;
     case secCtr > 15 && secCtr <= 17:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 17 && secCtr <= 20:
  document.theForm.textDisplay.value = "18 thru 20";
  break;
     case secCtr > 20 && secCtr <= 22:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 22 && secCtr <= 25:
  document.theForm.textDisplay.value = "23 thru 25";
  break;
     case secCtr > 25 && secCtr <= 27:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 27 && secCtr <= 30:
  document.theForm.textDisplay.value = "28 thru 30";
  break;
     case secCtr > 30 && secCtr <= 32:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 32 && secCtr <= 35:
  document.theForm.textDisplay.value = "33 thru 35";
  break;
     case secCtr > 35 && secCtr <= 37:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 37 && secCtr <= 40:
  document.theForm.textDisplay.value="38 thru 40";
  break;
     case secCtr > 40 && secCtr <= 42:
  document.theForm.textDisplay.value = "";
  break;
     case secCtr > 43 && secCtr <= 45:
  document.theForm.textDisplay.value="";
  break;
     case secCtr > 45 && secCtr <= 48:
  document.theForm.textDisplay.value = "46 thru 48";
  break;
     case secCtr > 48 && secCtr <= 50:
  document.theForm.textDisplay.value="";
  break;
     case secCtr > 50 && secCtr <= 53:
  document.theForm.textDisplay.value = "51 thru 53";
  break;
     case secCtr > 53 && secCtr <= 55:
  document.theForm.textDisplay.value="";
  break;
     case secCtr > 55 && secCtr <= 58:
  document.theForm.textDisplay.value = "56 thru 58";
  break;
     case secCtr > 58 && secCtr < 60:
  document.theForm.textDisplay.value="";
  break;
    default:
  document.theForm.textDisplay.value=secCtr;
 }

 pace = setTimeout("UpdateClock()", 1000);
}

function startFlash() {
 pace = setTimeout("UpdateClock()", 500);
}

function stopFlash() {
 if(pace) {
  clearTimeout(pace);
  pace  = 0;
 }
}

//-->
</script>
</head>
<body onload="startFlash()" onunload="stopFlash()">
<form name="theForm">
<input type="text" name="textDisplay" length="12"
style="font-size: x-large; text-align: center;
background: #0000FF; color: #FFFFFF;">
</form>
</body>
</html>

_______________________________________________
Javascript mailing list
Javascript@xxxxxxxxxx
https://lists.LaTech.edu/mailman/listinfo/javascript