Making Microwave Ovens
To make an object, you create a factory, then call its new() method. Note that you don't need to define this method; all factories have a new() method by default.
a_thing <- thing_factory$new()
Este exercício faz parte do curso
Object-Oriented Programming with S3 and R6 in R
Instruções do exercício
The microwave_oven_factory variable from the last exercise is in your workspace.
- View the
microwave_oven_factory. - Create a new
MicrowaveOvenobject and assign it to the variablemicrowave_oven.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# View the microwave_oven_factory
microwave_oven_factory
# Make a new microwave oven
microwave_oven <- ___