Async dep example with Cradle.

looperator.js

var data = [1,2,3,4,5,6,7,8,9,10],
    len = data.length,
    count = 0;

function f() {
    //do your dependent stuff here
}

data.forEach(function(i) {
    db.save(key, {val: i}, function(err, res) {
        //data for i saved yay!
        count++;
        if (count === len) {
            f();
        }
    });
})