moy-fp/test/Function/converge.test.js

A functional programming library.

import __ from '../../src/Function/__'
/**
 * [(x1, x2, ...) -> a, (x1, x2, ...) -> b, ..., (x1, x2, ...) -> m] -> ((a, b, ..., m) -> n) -> ((x1, x2, ...) -> n)
 */
import converge from '../../src/Function/converge'

test.only('converge(not using __)', () => {
  expect(
    converge([
      (a, b) => a + b,
      (a, b) => a - b,
    ], (x, y) => x / y)(6)(2)
  ).toBe(2)
})

// test('converge(using __)', () => {
//   expect(
//     converge(__, (x, y) => x / y)([
//       (a, b) => a + b,
//       (a, b) => a - b,
//     ])(6)(2)
//   ).toBe(2)
// })