Question

Given the list called my_list, what would the following slice notation give you:

my_list[-1:-5:-1]

Cosmo · Accepted Answer

The syntax is
list_name[start:end:step]
Since step is -1, we are counting backwards. Since start is -1, we start at the end of the list. Then we count backwards to (but not including) index -5. So, assuming the list contains four or more items, we'll get values for indexes -1, -2, -3, and -4.
In case list has less than 4 elements - code will return all available elements in reverse order.

Cosmo · Accepted Answer

Up to 4 items, starting from the last item in the list and indexed in reverse order.

Cosmo · Answer

An IndexError exception. Negative numbers in slice notation have no meaning.

Cosmo · Answer

A subset of the list, from the 4th item to the end of the list, in reverse order.

Cosmo · Answer

No items, since the beginning and ending indices are the same

Cosmo · Answer

2 items, starting from the 5th index from the end of the list

Слідкуй за CodeGalaxy

Мобільний додаток Beta

Продовжуйте вивчати
тести з Python

Пов'язані матеріали

Слідкуй за CodeGalaxy

Мобільний додаток Beta

Продовжуйте вивчати тести з Python

Продовжуйте вивчати
тести з Python