skipEveryNth method
Skips every n-th element. n must be positive.
Implementation
@useResult
Iterable<T> skipEveryNth(int n) {
if (n < 1) throw ArgumentError(_kErrNPositive, _kParamN);
return zipWithIndex().where(((int, T) p) => p.$1 % n != 0).map(((int, T) p) => p.$2);
}