Method getMutableArray

Fleece/Mutable/MutableArray.hh:65–65

Promotes an Array item to a MutableArray (in place) and returns it. Or if the item is already a MutableArray, just returns it. Else returns null. */

        /** Promotes an Array item to a MutableArray (in place) and returns it.
            Or if the item is already a MutableArray, just returns it. Else returns null. */
        MutableArray* getMutableArray(uint32_t i)   {return heapArray()->getMutableArray(i);}

        /** Promotes a Dict item to a MutableDict (in place) and returns it.
            Or if the item is already a HeapDict, just returns it. Else returns null. */