22 lines
533 B
Markdown
22 lines
533 B
Markdown
---
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title: map_object
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tags: list,intermediate
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---
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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.
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Use a `for` loop to iterate over the list's values, assigning the values produced by `fn` to each key of the dictionary.
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```py
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def map_object(itr, fn):
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ret = {}
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for x in itr:
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ret[x] = fn(x)
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return ret
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```
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```py
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map_object([1,2,3], lambda x: x * x) # { 1: 1, 2: 4, 3: 9 }
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```
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