TypeScript sandbox

[davetapley]

I was looking for a TypeScript version of the sandbox to create a bug report and I found this by (I presume) @edshav ?

As best I can tell it all looks correct, but in App.tsx there are several type errors, can anyone diagnose?

Property 'done' does not exist on type 'number | [any] | ((() => string) & (() => string)) | (() => void) | ((key: string) => boolean) | ((key: string) => boolean) | (() => IterableIterator<string>) | "Map" | (() => IterableIterator<[string, { ...; } & ... 2 more ... & IStateTreeNode<...>]>) | ... 13 more ... | ((handler: IInterceptor<...>) => Lambda)'.
  Property 'done' does not exist on type 'number'.typescript(2339)

etc...

[coolsoftwaretyler]

Not sure about what's up with those type errors, but we can use this one from the MST codesandbox account:

https://codesandbox.io/p/sandbox/xr2ctd