introspect_methods

🔍 Introspect Methods

Use methods, public_methods, instance_methods, and filtering to discover what an object or class can do at runtime. This helps in building dynamic features such as auto-generated API docs or dynamic dispatchers. You can also filter out inherited methods or private ones to focus on your own.

class User
  def login; end
  def logout; end
end

# List all public instance methods defined on User (excluding ancestors)
User.instance_methods(false) #=> [:login, :logout]

# List only singleton methods on an instance
user = User.new
def user.special; end
user.methods(false) #=> [:special]