x/rambda/source/last.spec.js
123456789101112import { last } from './last.js'test('with list', () => { expect(last([ 1, 2, 3 ])).toBe(3) expect(last([])).toBeUndefined()})test('with string', () => { expect(last('abc')).toBe('c') expect(last('')).toBe('')})