app.d.ts

interface ISchedule {
    time: string;
    cause: string;
    amount: number;
}

/**
 * The BeforeInstallPromptEvent is fired at the Window.onbeforeinstallprompt handler
 * before a user is prompted to "install" a web site to a home screen on mobile.
 *
 * @deprecated Only supported on Chrome and Android Webview.
 */
interface BeforeInstallPromptEvent extends Event {
    /**
     * Returns an array of DOMString items containing the platforms on which the event was dispatched.
     * This is provided for user agents that want to present a choice of versions to the user such as,
     * for example, "web" or "play" which would allow the user to chose between a web version or
     * an Android version.
     */
    readonly platforms: Array<string>;

    /**
     * Returns a Promise that resolves to a DOMString containing either "accepted" or "dismissed".
     */
    readonly userChoice: Promise<{
        outcome: "accepted" | "dismissed";
        platform: string;
    }>;

    /**
     * Allows a developer to show the install prompt at a time of their own choosing.
     * This method returns a Promise.
     */
    prompt(): Promise<void>;
}