range python 2.7 code example
Example 1: range python 3
# range(start, stop, step)
# start = index to begin at (INCLUSIVE)
# stop = generate numbers up to, but not including this number (EXCLUSIVE)
# step = (can be omitted) difference between each number in the sequence
arr = [19,5,3,22,13]
# range(stop)
for i in range(len(arr)):
print(arr[i]) # prints: 19, 5, 3, 22, 13
# range(start, stop)
for i in range(2, len(arr)):
print(arr[i]) # prints: 3, 22, 13
# range(start, stop, step)
for i in range(0, len(arr), 2):
print(arr[i]) # prints: 19, 3, 13
# reverse:
for i in range(len(arr)-1, -1, -1):
print(arr[i])
Example 2: range python
range(4) # [0, 1, 2, 3] 0 through 4, excluding 4
range(1, 4) # [1, 2, 3] 1 through 4, excluding 4
range(1, 10, 2) # [1, 3, 5, 7, 9] 1 through 10, counting by 2s