Wondering how a specific method on an object is exactly named? You can use
Enumerable#grep to detect it in the array of methods.
@user.methods.grep /name/ # => [:name, :first_name, :last_name]
You can also call
#public_methods. To find only relevant methods, it is suggested to subtract generic methods like this:
User.methods - Object.methods User.methods - ActiveRecord::Base.methods
@user.methods - Object.instance_methods @user.methods - ActiveRecord::Base.instance_methods