Question

158

How to return AJAX response Text?

rated 0 times [ 163] [ 5] / answers: 1 / hits: 60734 / 15 Years ago, tue, august 4, 2009, 12:00:00

I use prototype to do my AJAX development, and I use the code like this:

somefunction: function(){

    var result = ;

    myAjax = new Ajax.Request(postUrl, {

        method: 'post',

        postBody: postData,

        contentType: 'application/x-www-form-urlencoded',

        onComplete: function(transport){

            if (200 == transport.status) {

                result = transport.responseText;

            }

        }

    });

    return result;

}

And I find that the result is an empty string. So, I tried this:

somefunction: function(){

    var result = ;

    myAjax = new Ajax.Request(postUrl, {

        method: 'post',

        postBody: postData,

        contentType: 'application/x-www-form-urlencoded',

        onComplete: function(transport){

            if (200 == transport.status) {

                result = transport.responseText;

                return result;

            }

        }

    });



}

But it didn't work also. How can I get the responseText for other method to use?

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aleighabayleef

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2 Years ago

answered 15 Years ago tobyl · Accepted Answer

remember that onComplete is called long after the someFunction is done working. What you need to do is pass a callback function to the somefunction as a parameter. This function will be called when the process is done working (ie, onComplete):

somefunction: function(callback){

    var result = ;

    myAjax = new Ajax.Request(postUrl, {

        method: 'post',

        postBody: postData,

        contentType: 'application/x-www-form-urlencoded',

        onComplete: function(transport){

            if (200 == transport.status) {

                result = transport.responseText;

                callback(result);

            }

        }

    });



}

somefunction(function(result){

  alert(result);

});