This question already has an answer here:
-1 is not inserting the "hello" at the last index of the array
If I have an array, x:
>>> x = [1, 2, 3] then >>> x.insert(-1, "hello") >>> print(x) [1, 2, 'hello', 3]
Why -1 is not inserting the "hello" at the last index of the array? As -1 index is refered to the last item of the list, so I was expecting:
[1, 2, 3, "hello"]
help on method will usually give you the answer for these kind of questions:
help(list.insert) #Help on method_descriptor: # #insert(self, index, object, /) # Insert object before index.