How to get a last element of ES6 Map without iterations?

Question

How to get a last element of ES6 Map/Set without iterations(forEach or for of) pass through a full length of the container?

Answer 1

const getLastItemInMap = (map) => [...map][map.size-1];
const getLastKeyInMap = (map) => [...map][map.size-1][0];
const getLastValueInMap = (map) => [...map][map.size-1][1];