I don't recall that, just to not rely on the order of an object's keys, which appears to be outdated advice (at least for Javascript). https://2ality.com/2015/

I don't recall that, just to not rely on the order of an object's keys, which appears to be outdated advice (at least for Javascript). https://2ality.com/2015/10/property-traversal-order-es6.html https://2ality.com/2015/10/property-traversal-order-es6.html