Map.prototype.entries()

const map1 = new Map();
map1.set("0", "foo");
map1.set(1, "bar");
const iterator1 = map1.entries();
console.log(iterator1.next().value);
// Expected output: Array ["0", "foo"]
console.log(iterator1.next().value);
// Expected output: Array [1, "bar"]

maMap.entries();

var maMap = new Map();
maMap.set("0", "toto");
maMap.set(1, "truc");
maMap.set({}, "bidule");
var mapIter = maMap.entries();
console.log(mapIter.next().value); // ["0", "toto"]
console.log(mapIter.next().value); // [1, "truc"]
console.log(mapIter.next().value); // [Object, "bidule"]