let myMap =newMap();
myMap.set("key1","value1");
myMap.set("key2","value2");console.log(myMap.has("key1"));// trueconsole.log(myMap.has("key2"));// trueconsole.log(myMap.get("key1"));// value1console.log(myMap.get("key2"));// value2// NOTE: DO NOT try to access map values using [].// myMap["key1"] = "value1";