如何使用nodejs或javascript读取嵌套映射中的值

Question

我是javascript的新手，目前正在尝试读取值newMap，但不知道是谁我读Map的值吗？

const map1 = new Map();
map1.set('usagesUnkown', 10);
map1.set('usagesUnkown2', 10);
const newMap = new Map();
newMap.set("anoop",map1);

我已经试过这些答案了但什么都不起作用。

Answer 1

检查此项：

const map1 = new Map();
map1.set('usagesUnkown', 10);
map1.set('usagesUnkown2', 10);
const newMap = new Map();
newMap.set('anoop', map1);
const nestedValue = newMap.get('anoop').get('usagesUnkown');
console.log(nestedValue);

Answer 2

const map1 = new Map();
map1.set('usagesUnkown', 10);
map1.set('usagesUnkown2', 10);
const newMap = new Map();
newMap.set("anoop",map1);
const refToMap1 = newMap.get("anoop"); //return map 1
const usagesUnkown = refToMap1.get("usagesUnkown"); //return 10
//loop through a map
refToMap1 .forEach((value, key) => {
console.log(value, key);
});