the order is guaranteed. <a href="https:&#x2F;&#x2F;esdiscuss.org&#x2F;topic&#x2F;property-ordering-of-enumerate-getownpropertynames" rel="nofollow">https:&#x2F;&#x2F;esdiscuss.org&#x2F;topic&#x2F;property-ordering-of-enumerate-g...</a>