[Solved] Identify the error in this Ruby code snippet:a = {foo: 1}b = {bar: 2}a.merge! bputs b — Ans: No error; output is {:bar=>2} | Ruby

Ruby - Hashes

Identify the error in this Ruby code snippet:

a = {foo: 1}

b = {bar: 2}

a.merge! b

puts b

ASyntax error due to missing parentheses

BError because merge! modifies b instead of a

CNo error; output is {:bar=>2}

DRuntime error because merge! returns nil

Step-by-Step Solution

Solution:

Quick Trick: merge! changes receiver hash only [OK]

Common Mistakes:

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