The 's' replaces 1 space match at any given time although the 's+' replaces The entire House sequence directly with the second parameter. In such cases, it makes no distinction, since you are changing everything with the vacant string (although It will be better to use \s+ from an performance https://mantramushroomgummies64208.digiblogbox.com/56489729/new-step-by-step-map-for-s