/**
* Calls $fnTap for each element. This function is like walk, but does not consume the iterator.
* Example: Sequence::make($values)->tap($fnLogValue)->map(...)
*
* @param callable $fnTap($value, $key) -- called for each element. The return value is ignored.
* @return static
*/
public function tap($fnTap)
{
return static::make(IterationTraits::tap($this, $fnTap));
}
