FizzBuzz – JavaScript Exercise with Solution

Read n and count from 1 to n, replacing some numbers with words.

What to build

The classic counting game: a loop with a decision inside it.

Requirements

Print the numbers from 1 to n, one per line.
Print Fizz instead of multiples of 3.
Print Buzz instead of multiples of 5.
Print FizzBuzz instead of multiples of both.

Input

One whole number n.

Output

n lines.

Constraints

n is from 1 to 100.

Example

Input:

Output:

1
2
Fizz
4
Buzz

Why it works

The test for both must come first. If i % 3 === 0 ran first, 15 would print Fizz and never reach the other branch, because only the first true branch of a chain runs.

Examples

Example 1 · Input

Expected output

1
2
Fizz
4
Buzz

Example 2 · Input

Expected output

1
2
Fizz
4
Buzz
Fizz
7
8
Fizz
Buzz
11
Fizz
13
14
FizzBuzz

Hints

Hint 1

Loop with for (let i = 1; i <= n; i++).

Hint 2

Test the case divisible by both 3 and 5 first.

Hint 3

i % 15 === 0 means divisible by both 3 and 5.

Solution

Show one correct solution (try it yourself first)

const n = Number(prompt());
for (let i = 1; i <= n; i++) {
  if (i % 15 === 0) console.log("FizzBuzz");
  else if (i % 3 === 0) console.log("Fizz");
  else if (i % 5 === 0) console.log("Buzz");
  else console.log(i);
}

Lesson: Loops →