Good morning! Here's our prompt for today.

Fizz Buzz is a classic interview question that apparently many experienced engineering candidates often can't solve! Let's cover it today.

We're given a number in the form of an integer n.

Write a function that returns the string representation of all numbers from 1 to n based on the following rules:

• If it's a multiple of 3, represent it as "fizz".

• If it's a multiple of 5, represent it as "buzz".

• If it's a multiple of both 3 and 5, represent it as "fizzbuzz".

• If it's neither, just return the number itself.

As such, calling fizzBuzz(15) would result in '12fizz4buzzfizz78fizzbuzz11fizz1314fizzbuzz'.

The following image provides a visual of how we processed the input:

Constraints

• Maximum value of Integer n <= 1000
• n will always be a positive integer, but can be 0
• Expected time complexity : O(n)
• Expected space complexity : O(1)

AlgoDaily partner CodeTips.co.uk has kindly provided a guide on solving Fizz Buzz in Go and Javascript. Check it out for even deeper coverage of this problem.

Try to solve this here or in Interactive Mode.

How do I practice this challenge?

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var assert = require('assert');

​

function fizzBuzz(n) {

  return '';

}

​

try {

  assert.equal(fizzBuzz(0), '');

​

  console.log('PASSED: ' + "Expect `fizzBuzz(0)` to equal `''`");

} catch (err) {

  console.log(err);

}

​

try {

  assert.equal(fizzBuzz(1), '1');

​

  console.log('PASSED: ' + "Expect `fizzBuzz(1)` to equal `'1'`");

} catch (err) {

  console.log(err);

}

​

try {

  assert.equal(fizzBuzz(15), '12fizz4buzzfizz78fizzbuzz11fizz1314fizzbuzz');

​

  console.log(

    'PASSED: ' +

      "Expect `fizzBuzz(15)` to equal `'12fizz4buzzfizz78fizzbuzz11fizz1314fizzbuzz'`"

  );

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