In the previous project, an iframe was used for development. The top-level window contains several private attributes, and other pages interact through it. I now need to enhance the type of top in the iframe page using TypeScript. How should I modify the code below to prevent errors?
interface TopWindow extends Window {
createMP: (key?: string) => CustomPlayer;
}
declare var top: TopWindow | null;
The existing code is triggering a ts(2403) error.
Thanks to interface merging, you have the possibility to utilize the following code:
interface Window {
createMP: (key?: string) => CustomPlayer;
}
top!.createMP // works fine
Any subsequent definitions of the Window interface will be merged with the original one.
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