Lambda Expression.py

#!/usr/bin/env python
# coding: utf-8

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# lambda expression are known as anonymous functions 
# one time use functions
# and never refernccene them again


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def square(num):
    return num**2


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my_nums = [1,2,3,4,5]


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# I wanna do mu_nums valus all to square individually what is the possible soluton?
# loop ? why not map?


# # MAP

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map(square , my_nums)


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for item in map(square , my_nums):
    print(item)


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# I want the list back 
# list(map(square,my_nums))

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


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my_nums = [1,2,3,4,5,6,7,8,9,10]

# check numbers that even or odd 


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list(map(checkEven , my_nums))


# # FILTER

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# Differece between filter and map , map iterate all the values but filter filter the condition 
# and get only that list thats meet the filter condition


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list(filter(checkEven , my_nums))


# # Lambda

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# def square_func(num) : return num**2
# replace def to lambda
# arguemtn num and delete the return 
# it is anonymus it has no name
# it uses one time


square = lambda num : num**2
square(10)


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# convert this function to lambda expression
# def checkEven(num):
#     return num % 2 == 0



checkEven = lambda num : num % 2 == 0

checkEven(2)
checkEven(5) 

my_nums = [1,2,3,4,5,6,7,8,9,10]

# check list indivdiual items that either even or odd using map

list(map(checkEven,my_nums))



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# check list indivdiual items that either even or odd using filter


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list(filter(checkEven,my_nums))


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