Question

How do I say if method_one returns a value, then break, else try method_two?

def ai_second_move(board)
  p "2nd move called"
  # TODO - how to say if method_one gives me a value, break, else method_two
  method_one(board)
  method_two(board) 
end

Answer 1

using if –

method_two(board) if method_one(board).nil?

using unless –

method_two(board) unless !method_one(board).nil?

using ternary –

# This evaluates if (method_one(board) returns nil) condition. If its true then next statement is method_two(board) else return is executed next.
method_one(board).nil? ? method_two(board) : return