Question

I’m fairly new to programming and am avidly trying to learn R. I am attempting to solve the classic “Fizzbuzz” problem in R and have almost figured out a way, but my loop is printing twice. Tried debugging and searching, but I can’t seem to find anything. Any suggestions?

tl;dr Do you know why this for loop prints twice?

fizzbuzz = function(n){
  if ( n %% 15 == 0 ) {
    print("Fizzbuzz")
  } else
  if ( n %% 5 == 0 ) {
    print("buzz")
  } else
  if ( n %% 3 == 0 ) {
    print("Fizz")
  } else {
    print(n)
  }
}

for (a in 1:100)
  print(fizzbuzz(a))

Answer 1

Because you call print twice, once in the function and once in the loop. Remove the print in the loop and it only prints once.

for (a in 1:100)
  fizzbuzz(a)