add more combinators

[antonkulaga]

add more combinators

[lihaoyi]

Just download it and publishLocal yourself; then you can make whatever changes you want and try them out. If it works out well, send a PR explaining what you want to do and we can talk about it =)

[antonkulaga]

I am writing an extension that works with Rx[List[T]] and produces changes events to inform me what elements were deleted/removed/moved. For this I would not mind to have zip function (that will allow me to produce Rx of (oldvalue,newvalue) pairs) as well as a guidance of how to write new extensions ( deal with Watchers and other internals).
I am going to use this for DOM binding to collections of elements as think that redrawing a lot of DOM nodes just because one or two items in Rx[List[T]] changed is not a good idea.
I already wrote some "monkey-code" but have not tested it yet:
https://gist.github.com/antonkulaga/9820118
to simulate expected behaviour.

I usually prefer to write things outside of the libraries I want to extend (just directly in my project as it does not require to wait a lot after everything recompiles) and only when it becomes more or less working - port them inside libs and make pull requests.

[lihaoyi]

Which private things would you like to make public in order for you to do all the stuff you want to do?

[antonkulaga]

Which private things would you like to make public in order for you to do all the stuff you want to do?

I decided just to modify the lib itself, here is my pull request with zip #15

[lihaoyi]

bug bankruptcy: 0.3.0 is out and it's a whole new world!