Loop in Python
The for keyword is used to iterate over a sequence of elements. It is the most common way to perform a loop in Python.
nums = [1, 2, 3, 4, 5]
for num in nums:
print(num) # Output: 1, 2, 3, 4, 5
Usually, the range() function is used to generate a sequence of numbers to iterate over.
for i in range(5):
print(i) # Output: 0, 1, 2, 3, 4 - range(5) generates numbers from 0 to 4
The enumerate() function can be used to get both the index and the value of each element in a sequence.
nums = [1, 2, 3, 4, 5]
for i, num in enumerate(nums):
print(f"Index: {i}, Value: {num}") # Output: Index: 0, Value: 1, Index: 1, Value: 2, Index: 2, Value: 3, Index: 3, Value: 4, Index: 4, Value: 5
Next example: While