Passing a variable out of an ajax call

I have some Jquery like this that is not working.
var roomid = 0;

           $.ajax({
                     type: "POST",
                       url: "/CMSPages/WebService.asmx/GetChatRoomId",
                       data: {RecipientId : recipientid},
                      success: function (data) {
                         var encodedHtml = data.children[0].innerHTML;
                         var decodedHtml = decode(encodedHtml);
                        
                        }
            });
           
            roomid = decodedHtml;

decodedHtml has not value outside of the ajax call.  How can I get that value out to the roomid variable.

Thanks.
sherbug1015Asked:
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F IgorDeveloperCommented:
DecodedHtml is a private variable inside function.

Set the roomid value directly into response function:
(This is evaluated asynchronously after POST is done)

var roomid = 0;

           $.ajax({ 
                     type: "POST",
                       url: "/CMSPages/WebService.asmx/GetChatRoomId", 
                       data: {RecipientId : recipientid},
                      success: function (data) { 
                         var encodedHtml = data.children[0].innerHTML;
                         var decodedHtml = decode(encodedHtml);
                          roomid = decodedHtml;
                        } 
            });
            

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Russ SuterSenior Software DeveloperCommented:
Just declare the variable outside the scope of the ajax call.

          var decodedHtml;
           $.ajax({ 
                     type: "POST",
                       url: "/CMSPages/WebService.asmx/GetChatRoomId", 
                       data: {RecipientId : recipientid},
                      success: function (data) { 
                         var encodedHtml = data.children[0].innerHTML;
                         decodedHtml = decode(encodedHtml);
                        
                        } 
            });
            
            roomid = decodedHtml;

Open in new window

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