How can you use a for loop in Ruby to create a hash where keys are numbers 1 to 3 and values are their squares?

hard📝 Application Q9 of 15

Ruby - Loops and Iteration

Ahash = {} for i in 1..3 do hash[i] = i * i end

Bhash = {} for i in 1..3 do hash[i] = i + i end

Chash = {} for i in 1..3 do hash[i] = i end

Dhash = {} for i in 1..3 do hash[i] = i / 2 end

Step-by-Step Solution

Solution:

Step 1: Understand the goal
Create a hash with keys 1 to 3 and values as squares of keys.
Step 2: Check each option's assignment
hash = {} for i in 1..3 do hash[i] = i * i end assigns i*i which is square. Others assign sums, keys, or division.
Final Answer:
hash = {} for i in 1..3 do hash[i] = i * i end -> Option A
Quick Check:
Assign squares as values in hash [OK]

Quick Trick: Use hash[key] = value inside for loop [OK]

Common Mistakes:

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