Mastering the art of redefining global variables with TypeScript

I am currently working on an app where I am looking to promote the use of a wrapper for localStorage that handles JSON conversion and type-checking automatically. I attempted to modify the global TS definition for window.localStorage like this:

declare global {
  interface Window {
    localStorage: null,
  }
}

However, my attempt did not yield the desired result - Is there a way to prevent the usage of window.localStorage during compilation and potentially provide users with a helpful warning explaining why it is not compiling?

Answer №1

Imagine if you simply inserted the

 interface Window {
    localStorage: null,
  }

into a declaration file labeled as global, and placed that file in a location within your project that is recognized by the TSC compiler (VS Code linter), then you wouldn't even require that import './our-defs.d.ts'

Answer №2

Well, scratch that, I found a solution that worked by importing the file directly:

import './our-defs.d.ts'

If anyone has tips on adding a personalized error message, please share!

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