Question

78

JavaScript function that returns AJAX call data

rated 0 times [ 84] [ 6] / answers: 1 / hits: 106175 / 14 Years ago, tue, march 1, 2011, 12:00:00

I would like to create a JavaScript function which returns the value of a jQuery AJAX call. I would like something like this.

function checkUserIdExists(userid){

    return $.ajax({

        url: 'theurl',

        type: 'GET',

        cache: false,

        data: {

           userid: userid

        },

        success: function(data){

            return data;

        }

    });

}

I know I can do this by setting async to false but I would rather not.

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janjadonb

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answered 14 Years ago danar · Accepted Answer

With jQuery 1.5, you can use the brand-new $.Deferred feature, which is meant for exactly this.

// Assign handlers immediately after making the request,

// and remember the jqxhr object for this request

var jqxhr = $.ajax({ url: example.php })

    .success(function() { alert(success); })

    .error(function() { alert(error); })

    .complete(function() { alert(complete); });



// perform other work here ...



// Set another completion function for the request above

jqxhr.complete(function(){ alert(second complete); });

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