gistfile1.txt

    return Promise.all(PromiseStack)
        .then(() => {
            console.log('Data sent to Firestore')
            let taskList = {}
            
            // isEmpty(taskList) ? Promise.resolve('vazio') : Promise.reject('cheio')

            db.collection('tasks')
                .where('user', '==', userUID)
                .where('active', '==', true)
                .where('completed', '==', false)
                .get()
                .then(tasks => {
                    tasks.forEach(task => taskList[task.data().uid] = task.data())
                    Promise.resolve(taskList)
                })