Find the error in this Ruby code that tries to create closures:

medium📝 Debug Q14 of 15

Ruby - Blocks, Procs, and Lambdas

closures = []
3.times do |i|
  closures << lambda { j }
  j = i
end
closures.each { |c| puts c.call }

AVariable j is used before assignment inside the lambda

BLambda syntax is incorrect

Ctimes method cannot be used with blocks

Dclosures array is not initialized

Step-by-Step Solution

Solution:

Step 1: Identify variable usage inside lambda
The lambda uses variable j before it is assigned any value in the block, causing an error when called.
Step 2: Understand variable binding timing
Since j is assigned after lambda creation, the lambda captures j as nil or undefined at call time, causing an error.
Final Answer:
Variable j is used before assignment inside the lambda -> Option A
Quick Check:
Use variables after assignment in closures [OK]

Quick Trick: Assign variables before using them in closures [OK]

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