x at consecutive indices n, thereby
generating consecutive substrings of length n and
returning the result as a list. This function will safely
'slice' a UTF-8 encoded vector.
str_slice2(x, n = 1, USE.NAMES = TRUE)x, pass this through to the result?x, with each
element made up of the substrings generated from
x[i].
str_slice, for slicing an ASCII vector.