[Solved] Given keys = [:a, :b, :c] and values = [1, 2], what happens when you run keys.zip(values).to_h? — Ans: Creates {:a=>1, :b=>2, :c=>nil} with missing values as nil | Ruby

Ruby - Enumerable and Collection Processing

Given keys = [:a, :b, :c] and values = [1, 2], what happens when you run keys.zip(values).to_h?

ACreates {:a=>1, :b=>2, :c=>nil} with missing values as nil

BRaises an error because arrays differ in length

CCreates {:a=>1, :b=>2} ignoring extra keys

DCreates {:a=>1, :b=>2, :c=>0} filling missing with zero

Step-by-Step Solution

Solution:

Step 1: Zip keys and values arrays
Since values is shorter, zip fills missing with nil.
Step 2: Convert zipped array to hash
Hash includes key :c with value nil.
Final Answer:
{:a=>1, :b=>2, :c=>nil} with missing values as nil -> Option A
Quick Check:
Zip fills missing with nil, to_h creates hash [OK]

Quick Trick: Zip fills missing with nil before to_h [OK]

Common Mistakes:

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Given keys = [:a, :b, :c] and values = [1, 2], what happens when you run keys.zip(values).to_h?