v2.0.2
In del method if index is a negative number, return a copy of the original array. By just returning the original array (as of version 1.0.3) is dangerous for mutating the resulted array if the original is mutated.
In del method if index is a negative number, return a copy of the original array. By just returning the original array (as of version 1.0.3) is dangerous for mutating the resulted array if the original is mutated.