moy-fp/test/String/sliceString.test.js

A functional programming library.

import __ from '../../src/Function/__'
/**
 * Number -> Number -> String -> String
 */
import sliceString from '../../src/String/sliceString'

test('sliceString(not using __)', () => {
  expect(
    sliceString(1)(-1)('murakami')
  ).toBe('urakam')
})

test('sliceString(using __)', () => {
  expect(
    sliceString(1, __, 'murakami')(-1)
  ).toBe('urakam')
})