function printMap(value, key) {
console.log(`Key: ${key}, Value: ${value}`);
}
const mp = new Map([
['str', 'nodejs'],
['arr', [3364, 6877, 8129, 1900]],
]);
console.log([...mp.entries()]);
mp.forEach(printMap);
console.log(mp.get('arr'));
console.log(mp.get('arr')[0]);
console.log(mp.get('arr')[1]);
console.log(mp.get('arr')[2]);
console.log(mp.get('arr')[3]);
console.log(mp.get('arr').length);
for (let i = 0; i < mp.get('arr').length; i++)
console.log(mp.get('arr')[i]);
/*
run:
[ [ 'str', 'nodejs' ], [ 'arr', [ 3364, 6877, 8129, 1900 ] ] ]
Key: str, Value: nodejs
Key: arr, Value: 3364,6877,8129,1900
[ 3364, 6877, 8129, 1900 ]
3364
6877
8129
1900
4
3364
6877
8129
1900
*/
