To include Node.js ES6 classes with require, we set module.exports to the class.
Then we can use require to import the class.
For instance, we write
class Animal {
//...
}
module.exports = Animal;
to set module.exports to the Animal class to export the class in Animal.js.
Then we write
const Animal = require("./Animal");
class Dog extends Animal {
//...
}
to require the Animal.js file to import the class.
And then we create the Dog class that inherits from the Animal class.
