--update: classic FizzBuzz... 😊

Author: ashokdey

src/fizzbuzz/fizzbuzz.test.js

@@ -0,0 +1,19 @@
+const { fizzBuzz } = require('.');
+
+describe('FizBuzz...', () => {
+  it('Should return `Fizz` for a multiple of 3 only', () => {
+    expect(fizzBuzz(21)).toEqual('Fizz');
+  });
+
+  it('Should print `Buzz` for a multiple of 5 only', () => {
+    expect(fizzBuzz(35)).toEqual('Buzz');
+  });
+
+  it('Should return `FizzBuzz` for multiple of 3 & 5', () => {
+    expect(fizzBuzz(45)).toEqual('FizzBuzz');
+  });
+
+  it('Should return the number if its not a multiple of 3, 5 or both 3 & 5', () => {
+    expect(fizzBuzz(7)).toEqual(7);
+  });
+});

src/fizzbuzz/index.js

@@ -0,0 +1,16 @@
+function fizzBuzz(number) {
+  if (number % 15 === 0) {
+    return 'FizzBuzz';
+  }
+  if (number % 5 === 0) {
+    return 'Buzz';
+  }
+  if (number % 3 === 0) {
+    return 'Fizz';
+  }
+  return number;
+}
+
+module.exports = {
+  fizzBuzz,
+};