[Solved] Identify the error in this Ruby code: h = {a: 1, b: 2} h.each do |k| puts k end — Ans: No error, code runs fine | Ruby

Ruby - Hashes

Identify the error in this Ruby code:

h = {a: 1, b: 2}
h.each do |k|
  puts k
end

ANo error, code runs fine

Bh.each is not a valid method

CSyntax error due to missing parentheses

DBlock expects two variables but only one given

Step-by-Step Solution

Solution:

Step 1: Check block parameters for each on hash
each on a hash yields key and value, but with only one block parameter |k|, Ruby assigns an array [key, value] to k. No error occurs.
Step 2: Verify code runs
The code executes without syntax or runtime errors, printing [:a, 1] and [:b, 2].
Final Answer:
No error, code runs fine -> Option A
Quick Check:
Hash#each with |k| assigns [key, value] array to k [OK]

Quick Trick: Hash#each with single block arg receives [key, value] array, no error [OK]

Common Mistakes:

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