let mp = new Map([["typescript", 5], ["javascript", 8], ["nodejs", 4], ["c++",9], ["c", 1]])
for (let i = 0; i < mp.size; i++) {
let key = Array.from(mp.keys())[i];
let value = mp.get(key);
console.log(key + " : " + value);
}
/*
run:
typescript : 5
javascript : 8
nodejs : 4
c++ : 9
c : 1
*/