Could you pls check this code?
Last post was 12 Dec 2006 at 04:32
-
I cant understand whats the problem with it... Im trying to make a button, which upon being pressed pops up a prompt box asking for a digit from 0 to 10, which then upon returning the value will display the user an alert telling he either succeeded in entering the correct number or not.
<html>
<head>
<script type="text/javascript">
var x=prompt("Enter a number between 0 and 10:","")
function throw()
{
try
{
if(x>10)
throw "Err1"
else if(x<0)
throw "Err2"
else if(isNaN(x))
throw "Err3"
else if(0 < x && x < 10)
throw "Err4"
}
catch(er)
{
if(er == "Err1")
alert("Error! The value is too high")
if(er == "Err2")
alert("Error! The value is too low")
if(er == "Err3")
alert("Error! The value is not a number")
if(er == "Err4")
alert("You entered a valid number! Way to go..")
}
}
</script>
</head>
<body>
<input type="button" value="Enter Digit" onclick="throw()" />
</body>
</html>
-
Move the
var x=prompt("Enter a number between 0 and 10:","")
inside the throw() function, before the try.
By the way, you don't need to use a try/catch here - you can just put the alert inside the if statements, like so:
if( x > 10 )
{
alert( "Too high!" );
}As an endnote, I had no idea what your problem was so I had to guess. You should elaborate so that we can help you better.
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