What are JavaScript object references?

Can you explain what JavaScript object references are?

Sure! In JavaScript, objects are stored as references. This means that when you assign an object to a variable, you're actually assigning a reference to that object, not the object itself.

What happens if I change the object through one reference?

If you change the object through one reference, the change will be reflected in all references to that object since they all point to the same memory location.

Can you give me an example of this?

Of course! If you have an object let obj1 = { name: 'Alice' }; and then assign it to another variable let obj2 = obj1;, changing obj2.name = 'Bob'; will also change obj1.name to 'Bob'.

What about primitive types? Are they the same?

No, primitive types like numbers and strings are copied by value. So if you assign a primitive to another variable, they are independent of each other.