ForEach class

Iterates over the map entries and calls the provided function for each entry. The function should take two arguments: the key and the value.

var mp = {"a": 1, "b": 2, "c": 3};
mp.forEach(fun(key, value) {
    print(key + ": " + value);
});

Async example:

var mp = {"a": 1, "b": 2, "c": 3};
mp.forEach(async fun(key, value) {
    await wait(1000);
    print(key + ": " + value);
});