Map in python

Python map function

# The map function applies a function to every item in a list,
# and returns a new list.

numbers =  [0, -1, 2, 3, -4]

def square_func(n):
    return n*n
 
new_numbers = list(map(square_func, numbers))
#new_numbers: [0, 1, 4, 9, 16]

Map in python

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

Map in python

items = [1, 2, 3, 4, 5]
squared = []
for i in items:
    squared.append(i**2)

Source: book.pythontips.com

Map in python

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

Source: book.pythontips.com

Map in python

product = 1
list = [1, 2, 3, 4]
for num in list:
    product = product * num

# product = 24

Source: book.pythontips.com

Map in python

from functools import reduce
product = reduce((lambda x, y: x * y), [1, 2, 3, 4])

# Output: 24

-1

Source: book.pythontips.com

Similar codes

0 vote186 views1 answer
Get next iterator without incrementing python
Python
-4 votes228 views4 answers
Latest django version
Python Django
0 vote187 views2 answers
Lambda function dataframe
Python
0 vote177 views1 answer
How to save a python object in a file
Python
0 vote170 views1 answer
How to drag a box on your screen python
Python
1 vote191 views1 answer
Parse youtube video id from youtube link python
Python
0 vote202 views1 answer
Csrf token fetch django
Python Django
0 vote192 views1 answer
How to read panda column
Python
0 vote177 views1 answer
Least square fit straight line python
Python
0 vote232 views1 answer
Reportlab python draw line
Python