[Solved] What will happen if you try to get a Method object for a non-existent method :run on an object dog in Ruby?class Dog def bark "Woof!" end end d = Dog.new m = d.method(:run) m.call | Ruby

Ruby - Blocks, Procs, and Lambdas

What will happen if you try to get a Method object for a non-existent method :run on an object dog in Ruby?

class Dog
  def bark
    "Woof!"
  end
end

d = Dog.new
m = d.method(:run)
m.call

AIt returns nil since the method is missing

BIt raises a NameError because the method :run does not exist

CIt returns a Method object that calls method_missing

DIt calls the method :run directly without error

Step-by-Step Solution

Solution:

Step 1: Understand method lookup
Ruby's method(:name) looks for an existing method with the given symbol.
Step 2: Check if method exists
Since :run is not defined in Dog, Ruby raises an error.
Final Answer:
It raises a NameError because the method :run does not exist -> Option B
Quick Check:
Calling method with an undefined method name raises NameError [OK]

Quick Trick: method(:name) fails if method doesn't exist [OK]

Common Mistakes:

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What will happen if you try to get a Method object for a non-existent method :run on an object dog in Ruby?