[Solved] What will be the output of the following Ruby code?h1 = {x: 5, y: 10}h2 = {y: 15, z: 20}result = h1.merge(h2)puts result | Ruby

Ruby - Hashes

What will be the output of the following Ruby code?

h1 = {x: 5, y: 10}

h2 = {y: 15, z: 20}

result = h1.merge(h2)

puts result

A{:x=>5, :y=>10, :z=>20}

B{:x=>5, :y=>15, :z=>20}

C{:x=>5, :y=>10}

D{:y=>15, :z=>20}

Step-by-Step Solution

Solution:

Step 1: Understand merge behavior
The merge method returns a new hash combining keys and values from both hashes.
Step 2: Key conflicts resolution
When keys overlap, values from the hash passed as argument (h2) overwrite those in the original (h1).
Step 3: Resulting hash
Keys :x, :y, and :z are present; :y's value is from h2 (15).
Final Answer:
{:x=>5, :y=>15, :z=>20} -> Option B
Quick Check:
Check overwritten keys and new keys [OK]

Quick Trick: merge returns new hash with argument's values overwriting [OK]

Common Mistakes:

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