Is it possible to make a JavaScript variable accessible across all pages?

Question

Make a JavaScript variable global(like to be accessible across all pages)

Answer 1

Use Es6 export :

". /components/js/variables.js"

export const name = "hello";

".components/js/someOtherFile.js"

import { name} from "components/js/someOtherFile.js"

Answer 2

Yes, it is possible. For example as with GET over URL.

Answer 3

I don't think that's possible.

Use localstorage api to store value of variable. It'll be accessible on all pages of your domain.

https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage

Note: localstorage doesn't work in this app's playground.

Answer 4

Declare it as a property in the window object
window.someVar = "some value"