JQuery .get in function to return data

Question

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How to return the response from an AJAX call from a function?

Trying to return data to var pNow that called .get function.

/* set var to server side script */
var pNow = getStime();

function getStime() {
$.get('servertime.asp', function (data) {
  return data;
  //alert(data); 
});
}

alert(data) confirms the data is valid and coming from the server side script but not getting returned to the var that called it.

your $get is a an async call. You need to use a global variable and then assign to that in your success function. — Ravi Y, Jan 18 '13 at 05:37
The link Musa gave has lots of very relevant information. You'll find your answer there. — Snixtor, Jan 18 '13 at 05:38

Adil · Answer 1 · 2013-01-18T07:37:38.940

2

The callback function in the second argument of $.get is an asynchrononous call and will fire after the getStime function has already finished its execution. You can use deferred.done to get the value as given below.

var pNow;
getStime().done(function(data) { pNow = data; });
alert("Use pNow here" + pNow);
function getStime() {
   return $.get('servertime.asp');
}

edited Jan 18 '13 at 07:37

answered Jan 18 '13 at 05:37

Adil

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Adil Thanks for helping but the above code will not work – hillcreative Jan 18 '13 at 05:53
Yes, the result doesn't appear to be getting back to pNow – hillcreative Jan 18 '13 at 06:10
Do you get data in done ? – Adil Jan 18 '13 at 06:23
No the function is failing somewhere. I can confirm that the server-side script servertime.asp works correctly – hillcreative Jan 18 '13 at 07:14
I have updated me code, did you try it? – Adil Jan 18 '13 at 12:58
pNow remains 'undefined' in alert – hillcreative Jan 18 '13 at 18:41
I've read the deferred.done link and can't account for why this won't work. I understand conceptually that the function needs to wait for the result but it just won't work. – hillcreative Jan 18 '13 at 18:44

score 0 · Answer 2 · answered Jan 18 '13 at 05:41

0

You can do something like this.

/* set var to server side script */
var pNow = getStime();

function getStime() {
  var newData = null;
  $.get('servertime.asp', function (data) {
     newData = data;
    //alert(data); 
  }).complete(function() {
     return newData;
  });

}

answered Jan 18 '13 at 05:41

insomiac

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1

Same problem. That `return` will end the inner call-back function, not the `getStime` function. Remember that you enter a new function scope when you do `function() {...}` – nbrooks Jan 18 '13 at 06:01

JQuery .get in function to return data

2 Answers2