Keys are unique within a dictionary while values may not be.Group of answer choicesTrueFalse
Question
Keys are unique within a dictionary while values may not be.
Group of answer choices
- True
- False
Solution
The statement is True.
In Python and other programming languages that utilize dictionaries, each key must be unique, meaning that no two keys can have the same identifier within a single dictionary. However, the values associated with these keys can be duplicates, meaning multiple keys can map to the same value.
For example:
my_dict = {
'a': 1,
'b': 2,
'c': 2,
'd': 3
}
In this example, the keys 'a', 'b', 'c', and 'd' are unique, but the values '2' occurs twice in association with different keys. This property allows dictionaries to efficiently map unique identifiers (keys) to their corresponding values.
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