let main = function() {
    let map = new Map();
    map.set("name", "hly");
    map.set("age", 22);
    console.log(map);
    console.log(map.get("name"));
    console.log(map.size)
    for(let [key, value] of map) {
        console.log(key, value);
    }
    map.forEach(function(value, key) {
        console.log(key, value);
    })
    map.forEach((value, key) => {
        console.log(key, value);
    })


}
export {
    main
}