Question

This is probably a simple problem but I need to create the JavaScript equivalent to N instances of a ‘class’ whose state must be totally separate.

like:

var car = new Car('Ford');
var car = new Car('Toyota');

How can I achieve this?

Answer 1

You can use an array object to store them:

var cars = [];

cars.push(new Car('Ford'));
cars.push(new Car('Toyota'));

cars[0].beep();

You can iterate over all the stored instances using a for loop:

for (var i = 0; i < cars.length; i++) {
  var car = cars[i];

  car.beep();
}