What does the keys method do when called on a Ruby hash?

easy📝 Conceptual Q11 of 15

Ruby - Hashes

What does the keys method do when called on a Ruby hash?

ADeletes all keys from the hash

BReturns an array of all the values in the hash

CReturns an array of all the keys in the hash

DIterates over each key-value pair in the hash

Step-by-Step Solution

Solution:

Step 1: Understand the keys method
The keys method extracts all keys from the hash and returns them as an array.
Step 2: Compare with other methods
values returns values, each iterates pairs, so only keys returns keys array.
Final Answer:
Returns an array of all the keys in the hash -> Option C
Quick Check:
keys = keys array [OK]

Quick Trick: Remember: keys method lists all keys as an array [OK]

Common Mistakes:

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