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Introduction to Functional Programming

Analyze FP

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Consider the following Python code:

def is_even(num):
    return num % 2 == 0

def filter_evens(nums):
    return list(filter(is_even, nums))

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
evens = filter_evens(numbers)
print(evens)

Why is this code functional?

Select one option from the list

The code uses pure functions and does not modify its input parameters

The code uses global variables in a safe and controlled way

The code avoids side effects and does not modify any global variables

The code uses only immutable data types

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