Return Last Item

Create a function that returns the last value of the last item in a list or string.

Examples

last_ind([0, 4, 19, 34, 50, -9, 2]) ➞ 2

last_ind("The quick brown fox jumped over the lazy dog") ➞ "g"

last_ind([]) ➞ None

Notes

• Lists/strings will be of varying size.
• Return None if list/string is empty.