python for loop backwards

1    for i in range(len(item)-1, -1, -1):
2        print(item[i])

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

1# for i in range(start, end, step)
2for i in range(5, 0, -1):
3    print(i)
45
54
63
72
81
9
10    

1getEventListeners(domElement)