[ts] Property 'aaa' does not exist on type 'Window' 解決辦法

　第一種：

(window as any).aaa

  第二種：

   

declare global {
    interface Window { aaa: any; }
}

window.aaa = window.aaa || {};

 

第三種：

interface MyWindow extends Window {
    aaa(): void;
}

declare var window: MyWindow;