javascript return value issue

Asked May 08 '15 at 08:19

Active May 08 '15 at 08:26

Viewed 132 times

i have JavaScript application in Reactjs. The code is as follows

var fnlValue;
var ReportStore = assign({}, EventEmitter.prototype, {
    reportMemberList: function(projectId) {
        obj.projectMember(projectId, function(repose) {
            fnlValue = repose;
        });
        return fnlValue;
    }
}

The obj.projectMember is server side calling. I need to return fnlValue only after getting data from server side. Here callback is used but generating bugs.

Uncaught TypeError: callback is not a function

edited May 08 '15 at 08:26

Schemetrical

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asked May 08 '15 at 08:19

jagadeesh puthukkudi

The error is looking for something *named* `callback`. Is this used inside of `obj.projectMember`? – Davin Tryon May 08 '15 at 08:22
yes. I used inside obj.projectMember(). – jagadeesh puthukkudi May 08 '15 at 08:23
3

Then, can you show where the error is actually occurring? – Davin Tryon May 08 '15 at 08:24
probably variable `callback` is `undefined` in this scope – GSPdibbler May 08 '15 at 08:28
can anyone can rearrange the code with callback? – jagadeesh puthukkudi May 08 '15 at 08:33
3

You haven't posted the code that is failing. The issue is likely due to the call to `obj.projectMember`. Use the JavaScript debugger to step into the code to see what's wrong. – WiredPrairie May 08 '15 at 11:16
2

Even if the callback was working, you can't `return` a value from a function if that value is determined asynchronously. See [this answer](http://stackoverflow.com/questions/11233633/understanding-asynchronous-code-in-laymans-terms/11233849#11233849) for a bit more information. – Michelle Tilley May 08 '15 at 16:40
It would be helpful if you said which Flux framework you are using. I am guessing that `callback` is the callback your store should be registering with the dispatcher, which does not appear to be happening in your code. – fisherwebdev May 16 '15 at 05:09
issue fixed.All the API call is handling in action part.That is enough. – jagadeesh puthukkudi Jun 13 '15 at 03:16

javascript return value issue

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