gistfile1.js

var i = 0;
var len = object.length;
objects.forEach(function() {
    if (something) {
        doSomethingAsync(function(data) {
            doSomethingWithData(data);
            if (i === len - 1) {
                returnResponseToClient();
            }
            i++;
        });
    }
    else {
        doSomethingElse();
        if (i === len - 1) {
            returnResponseToClient();
        }
        i++;
    }
});