Maps the values of a list to a dictionary using a function, where the key-value pairs consist of the original value as the key and the result of the function as the value.
- Use
map()
to applyfn
to each value of the list. - Use
zip()
to pair original values to the values produced byfn
. - Use
dict()
to return an appropriate dictionary.
py
def map_dictionary(itr, fn):
return dict(zip(itr, map(fn, itr)))
map_dictionary([1, 2, 3], lambda x: x * x) # { 1: 1, 2: 4, 3: 9 }