What are the differences between dictionary methods in Python?
In Python, dictionaries have several methods like get()
, keys()
, values()
, and items()
. Each serves a different purpose.
Can you explain how the get()
method works?
Sure! The get()
method retrieves the value for a specified key. If the key doesn't exist, it returns None
or a default value if provided.
What about the keys()
method?
The keys()
method returns a view object that displays a list of all the keys in the dictionary.
Are there any performance differences between these methods?
Yes, performance can vary. For example, get()
is generally faster for retrieving values, while keys()
creates a view that can be iterated over.
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