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