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iOS Swift Basics (retired) Control Flow Exercise: FizzBuzz Generator

Juan Bermudez
Juan Bermudez
2,180 Points

Why did Amit use the remainder operator?

Amit used the remainder operator % to find out if a number was divisible by 3

He wrote

i % 3 == 0 I don't really understand why he used %

2 Answers

Nathan Tallack
Nathan Tallack
22,158 Points

If a number was divisible by 3 (exactly divisible with no remainder) then num % 3 would always return 0.

Consider the following:

3 % 3 = 0
4 % 3 = 1
5 % 3 = 2
6 % 3 = 0


Juan Bermudez
Juan Bermudez
2,180 Points

I understand now, thank you Sir!

I thought the same thing. I kept trying to use / and actually divide.