Applescript (JXA) code to get a list of notifications

bridge.js

#!/usr/bin/env osascript -l JavaScript

const NC_HIDDEN_POSITION = [99999, 99999];

class NotificationCenterBridge {
    constructor() {
        this.systemEvents = Application('System Events');
        this.uiServer = this.systemEvents.applicationProcesses.byName('SystemUIServer');
        this.notificationCentre = this.systemEvents.processes.byName('Notification Center');
        this.notificationTable = this.notificationCentre.windows.byName('NotificationTableWindow');
    }

    toggle() {
        this.uiServer.menuBars()[0].menuBarItems()[0].click();

        return this;
    }

    readNotificationsFromOpen() {
        const rows = ObjC.unwrap(this.notificationTable.scrollAreas[0].tables[0].rows());

        return rows.slice(2).map(notification => {
            try {
                const texts = notification.uiElements[0].staticTexts();
                const [app, when, title, _, value] = [0, 1, 2, 3, 4].map(i => texts[i].value());

                return { app, when, title, value };
            } catch (e) {
                return null;
            }
        }).filter(n => n);

        return notifications;
    }

    hide() {
        this.notificationCentre.windows[0].position = NC_HIDDEN_POSITION;

        return this;
    }
}

function run() {
    const nc = new NotificationCenterBridge();

    const notifications = nc
        .toggle()
        .hide()
        .readNotificationsFromOpen()


    nc.toggle();

    return notifications;
}