[Solved] Identify the error in this Ruby code: hash = {a: 1, b: 2} hash.freeze hash[:a] = 3 puts hash[:a] — Ans: RuntimeError due to modifying frozen hash | Ruby

Ruby - Functional Patterns in Ruby

Identify the error in this Ruby code:

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

ANo error, prints 3

BSyntaxError because of hash syntax

CRuntimeError due to modifying frozen hash

DNo output because of infinite loop

Step-by-Step Solution

Solution:

Step 1: Freeze the hash
hash.freeze makes the hash immutable.
Step 2: Attempt to modify frozen hash
hash[:a] = 3 tries to change a value, causing RuntimeError.
Final Answer:
RuntimeError due to modifying frozen hash -> Option C
Quick Check:
freeze + hash modification = RuntimeError [OK]

Quick Trick: Frozen hashes cannot be modified; raises RuntimeError [OK]

Common Mistakes:

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