Some operators are not exposed as lettables

[OliverJAsh]

IxJS version: 2.3.4

Whilst import { filter } from 'ix/iterable/pipe/filter'; works, import { orderBy } from 'ix/iterable/pipe/orderby'; does not (module does not exist).

I can see the lettable operator defined in the source code (https://github.com/ReactiveX/IxJS/blob/master/src/iterable/orderby.ts), but this is not in the released npm package: https://unpkg.com/ix@2.3.4/iterable/pipe/

[trxcllnt]

Ah yeah we might have added that after the most recent publish. I’ll review today and republish a new version with the latest!