JS Object Types
Arrays, functions, dates, and plain records are objects. A copied reference still points to the same object.
Where to run this
This example uses the JavaScript console playground. Select Run to execute it; the example does not run on this lesson page.
A practical example
const first = {places: 5};
const second = first;
second.places = 3;
console.log(first.places);
What happens
The first reference also reads 3.