python map

1# Python program to demonstrate working 
2# of map. 
3  
4# Return double of n 
5def addition(n): 
6    return n + n 
7  
8# We double all numbers using map() 
9numbers = (1, 2, 3, 4) 
10result = map(addition, numbers) 
11print(list(result))

1#generate a list from map iterable with lambda expression
2list( map(lambda x: x*2, numeros) )

1def calculateSquare(n):
2    return n*n
3
4
5numbers = (1, 2, 3, 4)
6result = map(calculateSquare, numbers)
7print(result)
8
9# converting map object to set
10numbersSquare = list(result)
11print(numbersSquare)

1items = [1, 2, 3, 4, 5]
2squared = list(map(lambda x: x**2, items))
3

1map(function_to_apply, list_of_inputs)
2

1lista =  [1, 2, -3, 4, 5, -9]
2def quadrado(n):
3    return n*n
4 
5map(quadrado, lista)
6[1, 4, 9, 16, 25, 81]