Informatics Practices
Assertion (A): The popitem() method can be used to delete elements from a dictionary.
Reasoning (R): The popitem() method deletes the last inserted key-value pair and returns the value of deleted element.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Python Dictionaries
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Answer
Both A and R are true and R is the correct explanation of A.
Explanation
The popitem() method in Python is used to delete elements from a dictionary. It returns and removes the last inserted key-value pair from the dictionary.
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Related Questions
Assertion (A): Dictionary is a collection of key-value pairs.
Reasoning (R): Each key in a dictionary maps to a corresponding value. Keys are unique and act as the index.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Dictionaries are enclosed within curly braces { }.
Reasoning (R): The key-value pairs are separated by commas (,).
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Keys of the dictionaries must be unique.
Reasoning (R): The keys of a dictionary can be accessed using values.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): clear() method removes all elements from the dictionary.
Reasoning (R): len() function cannot be used to find the length of a dictionary.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.