task queue mechanism

taskQueue.js

            this.streamOne = Bacon.fromBinder(function (sink) {
                sink(new Bacon.Next());
            }).filter(function () {
                return sessionStorage.getItem('somethingExist') !== null && sessionStorage.getItem('somethingExist') === 'true';
            }).toProperty();
            // I noticed that it not works at all when I missed this
            // The question is why? :( 

            this.streamOne.onValue(function () {
                sessionStorage.removeItem('somethingExist');
            });

            this.streamTwo = new Bacon.Bus();
            this.streamTwo.filter(function () {
                // there is condition here .. 
                return true;
            }).flatMapConcat(function (task) {
                return self.streamOne.take(1).map(task);
            }).onValue(function (data) {
                console.log('do something');
            });