[Solved] Find the problem in this code:h = {a: {b: 2}} puts h.dig(:a, :b, :c) — Ans: Error because :b is not a hash | Ruby

Ruby - Hashes

Find the problem in this code:

h = {a: {b: 2}}
puts h.dig(:a, :b, :c)

ANo problem, outputs nil

BError because :b is not a hash

CSyntax error in dig usage

DOutputs 2

Step-by-Step Solution

Solution:

Step 1: Check the value of key :b
Key :b has value 2, which is an integer, not a hash.
Step 2: Understand dig behavior when next key is called on non-hash
Calling dig(:c) on integer 2 causes a NoMethodError.
Final Answer:
Error because :b is not a hash -> Option B
Quick Check:
dig fails if intermediate value is not hash or array [OK]

Quick Trick: dig fails if intermediate value is not a container [OK]

Common Mistakes:

MISTAKES

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