[Solved] Find the error in this Ruby code snippet:h = {x: 10, y: 20} h[:z] = 30 puts h.z — Ans: Using dot notation to access hash key | Ruby

Ruby - Hashes

Find the error in this Ruby code snippet:

h = {x: 10, y: 20}
h[:z] = 30
puts h.z

AAssigning new key-value pair is not allowed

BUsing dot notation to access hash key

CMissing colon in hash key

Dputs cannot print hash values

Step-by-Step Solution

Solution:

Step 1: Understand hash access methods
Ruby hashes do not support dot notation for key access.
Step 2: Identify incorrect access
puts h.z is invalid; correct is puts h[:z].
Final Answer:
Using dot notation to access hash key -> Option B
Quick Check:
Hash keys accessed with brackets, not dot [OK]

Quick Trick: Access hash keys with brackets, not dot notation [OK]

Common Mistakes:

MISTAKES

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