by using "var bool = true;"you made "bool" local to your callback and not to
your "checkIfUsername"
so "checkIfUsername" does not have a reference of bool you have to make bool
local to checkIfUsername so you first declare "var bool" in checkIfUsername,
then allow your callback to assign it a value
Thank you, that has worked. I tried exactly the same thing before
because i though that returning the boolean from within the $.ajax
method might not work. However instead of using "bool = true;" i was
using "var bool = true;". Have you any idea why using the prefix of
var would stop this worki
if thats the case try
function checkIfUsername(o)
{
var bool;
$.ajax({
type: "POST",
url: ""+CI_ROOT+"index.php/admin/check_if_username",
data: ({username: username.val()}),
async: false,
dataType: "json",
Hi Steven,
Thank you for your reply but i'm not sure i understand what you mean?
By having async set to false the script does wait for the value to
come back from the server before executing the rest of the script (i
can tell it does this because all the alerts i run to test it, run in
the order
aside from the fact that checkIfUsername does not have a return
ajax function is not going to waitwhen you finished calling $.ajax your
function has already ended(returned)
then when server responded your returnUsernameBool will be called but thats
already too late for your alert(bValid)
thinking
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