Map

Map

def cube(x):
    return x*x*x

numbers = [1, 2, 3, 4]
cubeList = list(map(cube, numbers))
print(cubeList)

Filter

def IsEven(x):
    return (x % 2) == 0

numbers = [1, 2, 3, 4]
filteredList = list(filter(IsEven, numbers))
print(filteredList)

Reduce