This function 'slices' the strings of a character vector
x at consecutive indices n, thereby
generating consecutive substrings of length n and
returning the result as a list.
Usage
str_slice(x, n = 1)
Arguments
x
a character vector.
n
integer (or numeric coercible to integer); index
at which to slice.
Value
A list of length equal to the length of x, with
each element made up of the substrings generated from
x[i].