export pipe() as function for concise use

I’m working with 5.5.0-beta.2 though the exact version does not matter, this is about pipe() in general. In trying to make concise use of the new legible operators, I end up using variants of this snippet of code repeatedly:

    someObs.mergeMap(x => x.pipe( ...

I’m hoping to eliminate the superfluous x => x. from here, using a top level pipe available directly rather than only as an operator on Observable. So instead I could do something like:

import { pipe } from 'rxjs/somewhere';

    someObs.mergeMap(pipe( ...

I think this pipe() may be just a function composition function under the good, with all the right TypeScript stuff in place to preserve the developer experience.

[benlesh]

Feature request: that whatever final form emerges to make it possible to mostly import all the stuff needed from RxJs from a single module (ideally) or at most a couple of modules, that pipe be included.

I’m hoping that by the final release of v6 everyone will be able to just import straight from rxjs like:

import { Observable, Subject, map, filter, asyncScheduler } from 'rxjs';

What remains to be seen is whether that will work well with bundlers or not. It seems like bundlers have some catch-up to do.

[lock[bot]]

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