How can you create an array of 5 hashes, each with keys :a and :b initialized to 0, ensuring each hash is a separate object?

hard📝 Application Q15 of 15

Ruby - Arrays

A<code>Array(5) { {a: 0, b: 0} }</code>

B<code>Array.new(5, {a: 0, b: 0})</code>

C<code>[{a: 0, b: 0}] * 5</code>

D<code>Array.new(5) { {a: 0, b: 0} }</code>

Step-by-Step Solution

Solution:

Step 1: Understand object references in Array.new
Using Array.new(5, {a: 0, b: 0}) or [{a: 0, b: 0}] * 5 repeats the same hash object 5 times.
Step 2: Use block form for unique hashes
Using Array.new(5) { {a: 0, b: 0} } runs the block 5 times, creating 5 separate hashes.
Final Answer:
Array.new(5) { {a: 0, b: 0} } -> Option D
Quick Check:
Block form creates unique objects [OK]

Quick Trick: Use block with Array.new for unique hashes [OK]

Common Mistakes:

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