const {any} = require('./_30s.js'); test('any is a Function', () => { expect(any).toBeInstanceOf(Function); }); test('Returns true for arrays with at least one truthy value', () => { expect(any([0, 1, 2, 3])).toBeTruthy(); }); test('Returns false for arrays with no truthy values', () => { expect(any([0, 0])).toBeFalsy(); }); test('Returns false for arrays with no truthy values', () => { expect(any([NaN, 0, undefined, null, ''])).toBeFalsy(); }); test('Returns true with predicate function', () => { expect(any([4, 1, 0, 3], x => x >= 1)).toBeTruthy(); }); test('Returns false with a predicate function', () => { expect(any([0, 1], x => x < 0)).toBeFalsy(); });