Rename Tap operator to SideEffect

[MeddahAbdellah]

The goal of RxJS is to provide a way to code reactively, in a more declarative way. Yet most developers, especially Fullstack developers come from an imperative world. This often leads to using tap to assign their values from inside the pipe to a variable outside the pipe and use that variable imperatively which is actually a side effect which is mainly what tap lets you do.

This operator is perfect when you want to trigger a notification or a toaster when a certain event happens, unfortunately, I have seen it used many times to assign a value to a variable outside the pipe.

My suggestion here is simply to rename tap to sideEffect to make it more explicit that this operator should be used for this purpose.

However I might not be on the right track here and tap should be used in other contexts that I am overlooking, in which case I would love to know how else it could be used and if I am the only one seeing it used everywhere for a purpose it is not meant for.

[jakovljevic-mladen]

This operator has been renamed once in the past, please check the Renamed Operators section here. I don't think it would be wise to rename it once again.