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Swift track - FizzBuzz Generator

I just finished doing the FizzBuzz Generator, why do we add the 0 as described on the video solution ?

Meaning I was able to visualize setting the numbers 1...20, but why do we need to put the 0 for example: if i % 3 == 0 or if i %5 == 0 ?

The zero is required as without it the statement can result in something other than `true` which is not what we're looking, for instance.
```if 3 % 3 {
So in the above example we're expecting a truthy value but instead because `3 % 3` equals `0` it's implied as `false` because `0` and `false` are the same thing when compared to each other.