Please do this!!

[matthew-dean]

JavaScript allows so much meta-programming, such as being able to define toString(), or valueOf or Symbol.toPrimitive to define how custom objects interact with primitives, but it becomes extremely limited when it comes to user objects interacting with other user objects in a developer-friendly way.

I would love proper operator overloading.

That said... I don't see the need for with operators. Like Symbol.toPrimitive, it seems like objects should be able to define how they interact with other objects / primitives, with fallbacks to native behavior for a behavior that is not specifically defined.

[tbontb-iaq]

We can override Symbol.Operator.+ or Symbol.Operator.Plus to change object plus beheavior.