moy-fp/src/Function/flip.js

A functional programming library.

import curry from './curry'
import nAry from './nAry'

/**
 * ((a, b, ..., m) -> n) -> ((b, a, ..., m) -> n)
 */
const flip = curry(
  fn => nAry(fn.length, (a, b, ...args) => fn(b, a, ...args))
)

export default flip