[Solved] Identify the error in this Fiber code:fiber = Fiber.new do puts 'Start' Fiber.yield puts 'End' end fiber.resume fiber.resume fiber.resume | Ruby

Ruby - Concurrent Programming

Identify the error in this Fiber code:

fiber = Fiber.new do
  puts 'Start'
  Fiber.yield
  puts 'End'
end
fiber.resume
fiber.resume
fiber.resume

AFiber cannot print inside its block

BFiber.yield cannot be called inside Fiber

CFiber must be resumed with an argument

DCalling resume after Fiber is finished raises FiberError

Step-by-Step Solution

Solution:

Step 1: Understand Fiber lifecycle
Fiber runs until no more code; after finishing, calling resume again causes error.
Step 2: Analyze code calls
Third resume call happens after Fiber finished, causing FiberError.
Final Answer:
Calling resume after Fiber is finished raises FiberError -> Option D
Quick Check:
Extra resume after finish = FiberError [OK]

Quick Trick: Do not resume a finished Fiber; it raises FiberError [OK]

Common Mistakes:

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