Reactive extensions for javascript.

Microsoft has released Rx extensions for Javascript. It's a great tool for organizing events processing in yours UI code.

I have used it to handle following task: Call Ajax-Update every 5 seconds, after filter button clicked and on paging request, but only when previous request is finished. Tricky? Good luck debugging it later.

This can be implemented using Rx extensions. In that case all that interactions became explicit and clear, placed on few lines of code.

Here is an example: