September 18th, 2012, 06:23 AM
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Confused badger
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Join Date: Mar 2009
Location: West Yorkshire
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Quote: | Originally Posted by djdigitalgirl99 Ok so I need help in understanding 'while' loops and using them.
If someone clicks no in a dialogue box, how can I get it to loop back to the original question? And how can I keep it looping until the value is true?
with the javascipt im using we have the following dialogue boxes:
alert (simple press ok to carry on)
confirm (a yes or no box)
request (the user has to type something ot carry on)
So for example:
String newNum = request("Please enter a new number you would like");
String confirmNew = request("Please confirm the new number");
if (newNum.equals(""+confirmNew))
{
alert("The new number has been processed");
}
else
{
confirm("The two numbers entered did not match. Try again?");
}
So if the user clicks yes to trying again how can I loop back to the start? And if the user clicked no how can I put an alert dialogue box to say "Cancelled" ?
Thank you for any help given! I got the basics but I cant work out looping!!
djdigitalgirl[dot]com |
Hi there
Couple of quick things:-
1. You've posted a Javascript question in a PHP forum, a mod should move this if you're wanting help with Javascript.
2. You should post code in appropriate tags.
Ok, now they're out of the way ...
The code you posted is an IF / ELSE so will only execute ONCE. A "While" loop will loop until a certain condition is met (which you define at the start of the loop).
For example, in PHP you would write:
PHP Code:
<?php
// Give $x an initial value, 4 in this case
$x = 4;
// Configure the while loop, in this case, WHILE X is not 0, perform the loop
while ($x != 0) {
// Display the current value of $x
echo $x . "<br />";
// Take 1 away from $x
$x--;
}
// When $x reaches 0, this bit of code is then executed
echo "Done!";
?>
With regards to your Javascript question, this link should answer all your questions.
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