Deferred race

[cyan33]

A few things that I feel quite confused:

1. What's the meaning of once here?
2. Is it necessary that in Deferred.all().then() we should get all of the results returned by each deferred instance?

[revan-zhang]

@thomasyimgit Thanks for it.

1. tiny-deferred is from jQuery.deferred, it based on jQuery.Callback. once method is one of the flags from the Callback, actually I don't remember it's useful in deferred, maybe we should delete it at some time.
2. yes, you are right. The return value for each promise instance should as a parameter to next fullfilled function or rejected function.That is my mistake, I create the tiny-deferred at about 1 year ago, at that time, I just want it work as simple, don't thinking too much of it. Sorry about that.