You ever have two slices in Go you wanted to combine? Of course you did. Did you use a for loop? Of course you did. Now what if I told you that for loop was bogus!

append.go

a := []int{1,2,3}
b := []int{4,5,6}

// Bad way
for _, number := range b {
    a = append(a, number)
}

// Super awesome way
a = append(a, b...)

// a = [1 2 3 4 5 6]

// append's second argument is actually variadic meaning you can pass multiple values to append to the slice.
// b... is the syntactic way saying im passing the values of the slice not the slice itself.