this may sound very easy to few of you, but i am not able to figure out why I am not able to get the return value, even after chceking many posts :(
function
I agree with the first line by ahren that 'That's because the $.ajax() call is asynchronous.'
you could try adding a setting - async:false which is true by default. This makes the call synchronous.
you can edit your code as :
function getMessageCount() {
var count;
$.ajax({
type: "POST",
url: "http://localhost:43390" + "/services/DiscussionWidgetService.asmx/GetMessageCount",
dataType: "json",
async:false,
contentType: "application/json; charset=utf-8",
success: function (data) {
count = data.d;
} //success
});
return count;
}
That's because the $.ajax()
call is asynchronous.
If you edit your code to something like:
function getMessageCount(callback) {
var count;
$.ajax({
type: "POST",
url: "http://localhost:43390" + "/services/DiscussionWidgetService.asmx/GetMessageCount",
dataType: "json",
contentType: "application/json; charset=utf-8",
success: function (data) {
count = data.d;
if(typeof callback === "function") callback(count);
} //success
});
}
Then when you call it:
getMessageCount(function(count){
console.log(count);
});
use a callback:
call function like:
getMessageCount(function(result) {
//result is what you put in the callback. Count in your case
});
and the other like:
function getMessageCount(callback) {
var count;
$.ajax({
type: "POST",
url: "http://localhost:43390" + "/services/DiscussionWidgetService.asmx/GetMessageCount",
dataType: "json",
contentType: "application/json; charset=utf-8",
success: function (data) {
count = data.d;
if (callback) {
callback(count);
}
} //success
});
}
function ajax_call(url,data){
return $.ajax({ type: "POST",
url: url,
data: data,
async:false,
success: function(status){
}
}).responseText;
}
Now you will get the response text from server side via ajax call
Why you don't just pass it to a function?
function getMessageCount() {
var count;
$.ajax({
type: "POST",
url: "http://localhost:43390" + "/services/DiscussionWidgetService.asmx/GetMessageCount",
dataType: "json",
contentType: "application/json; charset=utf-8",
success: function (data) {
count = data.d;
countMessages(count);
} //success
});
}
function countMessages(counted) {var counted = counted; console.log(counted);}