How to extend type of globalThis

[mickaelchanrion]

Hello 👋,
This is not a bug, just a question.
In my current project, I use external script that will be assigned to property in window.

Example: dataLayer, Alpine

Since I'm using typescript, it won't allow me to use or assign unknown properties to globalThis. How can I extend its type?

Many thanks.

[zanminkian]

Add a shims.d.ts file in your project:

declare var foo: object

Then other files can write:

globalThis.foo = {}

This is not issues belong to this library. You should file your question in stackoverflow.

[mickaelchanrion]

Thanks.
What worked for my case:

import type Alpine from 'alpinejs'

declare global {
  var Alpine: Alpine | undefined
}