What kind of operation is x%y in golang?

Question

I'm going through some golang tutorials, and I came across this for loop:

for n := 0; n <= 5; n++ {
    if n%2 == 0 {
        continue
    }
    fmt.Println(n)
}

I'm confused by the n%2 statement.

The output of this is:

1
3
5

It looks like these are not multiples of 2, but I'm not understanding the == 0 part of the statement if that's the case? Is there a resource that talks about this operation, or something I should look up?

Answer 1

It's the remainder/modulo-operator. This returns the rest of the division with the given number: https://en.wikipedia.org/wiki/Modulo_operation

This code fragment calculates all uneven numbers.