Example Fizz Buzz Solution
| | const fizzBuzz = require('./index'); |
| | |
| | describe('fizzBuzz()', () => { |
| | it('returns "FizzBuzz" for multiples of 3 and 5', () => { |
| | expect(fizzBuzz(15)).toBe('FizzBuzz'); |
| | expect(fizzBuzz(30)).toBe('FizzBuzz'); |
| | }); |
| | |
| | it('returns "Fizz" for multiples of 3', () => { |
| | expect(fizzBuzz(3)).toBe('Fizz'); |
| | expect(fizzBuzz(33)).toBe('Fizz'); |
| | }); |
| | |
| | it('returns "Buzz" for multiples of 5', () => { |
| | expect(fizzBuzz(5)).toBe('Buzz'); |
| | expect(fizzBuzz(20)).toBe('Buzz'); |
| | }); |
| | |
| | it('returns the given number for multiples of neither 3 nor 5', () => { |
| | expect(fizzBuzz(1)).toBe('1'); |
| | expect(fizzBuzz(22)).toBe('22'); |
| | }); |
| | }); |
| | module.exports = (num) => { |
| | if (num % 15 === 0) return 'FizzBuzz'; |
| | if (num % 3 === 0) return 'Fizz'; |
| | if (num % 5 === 0) return 'Buzz'; |
| | return `${num}` |
| | }; |
Footnotes
Copyright © 2019, The Pragmatic Bookshelf.
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