Hi, i've this async code:
    var compose = [], count = 0;
    while (count < req.body.service.length) {
      compose[count] = async.memoize(operation(req.body.service[count], 
req.body.name, req.body.lang));
      count++;
    }
    async.series(compose, 
      function (err, results){
        .......
        res.redirect('/');
    });

On operation function i've:
    .....
    return function (callback) { callback(null,value); }

But it seems that unmemoized is undefined and i've this error:
[ { [Function] memo: {}, unmemoized: undefined } ]
TypeError: Cannot call method 'apply' of undefined

I've got the example from: 
http://runnable.com/Ui_BIyWKhLw1AAAL/memoization-of-asynchronous-functions-with-async-for-node-js#
 and 
it works without problems.

Have you some suggestions about that?

Thanks for your time.
Best regards.



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