gistfile1.txt

var Ticker = function () {
    var decay = 5.0;
    var growth = 7.0;

    var stocks = [
        { name: "Apple", price: 4.50 },
        { name: "Microsoft", price: 4.00 },
        { name: "Facebook", price: 3.75 }
    ];

    var _state = 'Not Started';

    this.execute = function (self) {
        _state = 'Processing';
        stocks.forEach(function (p, i) {
            p.Price -= p.Price / decay;
        });
        process.send({ stocks: stocks });

        if (!self)
            self = this;

        if(_state !== 'Cancelled')
            setTimeout(function () {
                self.execute(self);
            }, 1000);
    };

    this.stop = function () {
        _state = 'Cancelled';
    };
    
};