the order is guaranteed. https://esdiscuss.org/topic/property-ordering-of-enumerate-getownpropertynames https://esdiscuss.org/topic/property-ordering-of-enumera

the order is guaranteed. https://esdiscuss.org/topic/property-ordering-of-enumerate-getownpropertynames https://esdiscuss.org/topic/property-ordering-of-enumerate-g...