[Solved] Identify the error in this Ruby code:hash = {a: 1, b: 2} hash.freeze hash[:c] = 3 — Ans: RuntimeError: can't modify frozen Hash | Ruby

Ruby - Class Methods and Variables

Identify the error in this Ruby code:

hash = {a: 1, b: 2}
hash.freeze
hash[:c] = 3

ASyntaxError due to hash syntax

BNo error, hash is modified

CRuntimeError: can't modify frozen Hash

DTypeError: wrong type for key

Step-by-Step Solution

Solution:

Step 1: Freeze the hash object
Calling freeze on hash makes it immutable.
Step 2: Attempt to add new key-value pair
Trying to add [:c] = 3 modifies the frozen hash, causing RuntimeError.
Final Answer:
RuntimeError: can't modify frozen Hash -> Option C
Quick Check:
Modifying frozen hash = RuntimeError [OK]

Quick Trick: Frozen hashes cannot be changed; modification raises error [OK]

Common Mistakes:

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