log

What about adding a simple log function that uses tap. Something simple that allows you to add a prefix and log the arg:

const log = prefix => tap(
  compose(
    console.log, 
    join(`: `),
    flip(append)([prefix]),
    JSON.stringify,
  )
)

const add3 = flip(add)(3);
const multi2 = multiply(2);
const sub1 = flip(subtract)(1);

const calc = compose(sub1, log(`Log`), multi2, add3); // Log: 16

There is a little discussion of something similar in Ramda’s issues here. I think it would be perfect for this library. We could of course allow the logging function to be configurable too.

const log = curry(
  (loggingFunction, prefix) => tap(
    compose(
      loggingFunction, 
      join(`: `),
      flip(append)([prefix]),
      JSON.stringify,
    )
  )
)

const logToConsole = log(console.log);

Could also allow the stringify function to be supplied.

[Undistraction]

FWIW Here is module for some impure logging action: https://github.com/Undistraction/ramda-log

[Undistraction]

I can see how it isn’t a perfect fit for this library. Trying to cater to browser and server is potentially complex, and making it configurable removes its immediate utility. A separate lib makes sense.