Python Map function
# Let's define general python function
>>> def doubleOrNothing(num):
... return num * 2
# now use Map on it.
>>> map(doubleOrNothing, [1,2,3,4,5])
<map object at 0x7ff5b2bc7d00>
# apply built-in list method on Map Object
>>> list(map(doubleOrNothing, [1,2,3,4,5])
[2, 4, 6, 8, 10]
# using lambda function
>>> list(map(lambda x: x*2, [1,2,3,4,5]))
[2, 4, 6, 8, 10]dict map()
List = [H4, C9, S4, D2]
Dictionary = {key: int(value) for key, value in List}
# Output:
# {'H': 4, 'C': 9, 'S': 4, 'D': 2}Copyright © 2021 Codeinu
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