About Lesson
map() Function
The map() function executes a specified function for each item in a iterable. The item is sent to the function as parameter.
Syntax: map(function name ,iterable)
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a=[5,10,15,20,25,30] def myfun(a): if a%2==0: return True else: return False def squ(a): return a*a val=list(filter(myfun,a)) square=list(map(squ,val)) print(val) print(square) output [10, 20, 30] [100, 400, 900] |
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Without filter function ages=[5,10,15,18,20,25,35] sqr=list(map(lambda a:a*a,ages)) print(sqr) Output [25, 100, 225, 324, 400, 625, 1225]
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Using lambda function ages=[5,10,13,15,17,18,20,22,25] adults=filter(lambda a:a>18,ages) square=list(map(lambda a:a*a,adults)) print(square) output [400, 484, 625] |