1# 1.
2for i in reversed(range(3)): # output: 0
3 print(i) # 1
4 # 2
5# works with arrays as well , reversed(arr)
6
7# 2.
8# another alternative is
9arr = [1,2,3]
10# note: arr[start : end : step]
11for i in arr[::-1]: # output: 0
12 print(i) # 1
13 # 2
14
15# 3.
16# last alternative i don't recommened!
17# note: range(start, end, step)
18for i in range(len(arr) - 1, -1 , -1): # output: 0
19 print(i) # 1
20 # 2
21# read more on range() to understand even better how it works has the same rules as the arrays
1my_list = [1, 2, 3]
2my_list.reverse() # my_list is modified
3print(my_list) # '[3, 2, 1]'
4my_revert = my_list[::-1] # my_list stays [3, 2, 1]
5print(my_revert) # '[1, 2, 3]'
6# Item by item reverse with range(<start>, <end>, <step>)
7for i in range(len(my_list), 0, -1): # my_list is [3, 2, 1]
8 print(my_list[i-1]) # '1' '2' '3'
9for i in reversed(range(len(my_list))):
10 print(my_list[i]) # '1' '2' '3'