Add more reactive inspired functionality on Stream (and maybe Iterable)

[lrhn]

Currently the simplest way to perform custom transformations of streams is to use the transform method.

someStream.transform(debounce(sec)).map(...).transform(switchLatest(...))

This is long and awkward compared to having the methods on the stream itself:

someStream.debounce(sec).map(...).switchLatest(...)

We should add more Rx inspired operations.

[eernstg]

Those methods would allow for late binding, of course, but if they only have a single implementation (they can still call methods on the Stream using late binding) then we could also express the transformations as functions without loss of expressive power:

switchLatest(map(debounce(someStream, sec), ...), ...)

and of course they could then be called using a BETA style "pipeline" syntax if we add something like the '->' that you've proposed:

someStream -> debounce(sec) -> map(...) -> switchLatest(...)

[dotdotcommadot]

Would definitely be nice if it were 'native' Dart. Meanwhile you might want to have a look at https://github.com/ReactiveX/rxdart.

[loic-sharma]

In C#, the reactive functionality is added through extension methods. For example, here is C#'s Skip extension. This works really well - they've added extension methods for just about everything without cluttering their version of the Iterable type.