[Solved] What is the output of this Ruby code?h = Hash.new("missing") h[:a] = 1 puts h[:a] puts h[:b] — Ans: 1 missing | Ruby

Ruby - Hashes

What is the output of this Ruby code?

h = Hash.new("missing")
h[:a] = 1
puts h[:a]
puts h[:b]

Anil missing

B1 nil

Cmissing missing

D1 missing

Step-by-Step Solution

Solution:

Step 1: Analyze hash creation and assignments
The hash h has default value "missing". Key :a is assigned 1.
Step 2: Check outputs for keys :a and :b
h[:a] returns 1 because it exists. h[:b] does not exist, so returns default "missing".
Final Answer:
1\nmissing -> Option D
Quick Check:
Existing key returns value; missing returns default [OK]

Quick Trick: Existing keys return value; missing keys return default [OK]

Common Mistakes:

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