map_set.js

// const obj = {};

// obj.nextLevel = { courseId: "Level2" };
// obj[course1] = { courseId: "Level1" };

// console.log(obj);

// console.log(obj["[object Object]"]);

const course2 = { name: "next level web development" };
const course1 = { name: "programming hero" };

// const set = new Set();

const map = new Map();

map.set(course1, { courseId: "Hello world" });
map.set(course2, { courseId: "Hello world" });
// console.log(map);

// map.clear();
// console.log(map);

// console.log(map.has(course2));

// map.forEach((value, key) => console.log("key :", key, "value :", value));
// map.forEach((value, key) =>
//   console.log((key.name = "sohojsorol simple " + key.name)),
// );

console.log([...map.values()]);