How to declare a global variable in React?

If you need to declare a global variable in React, then you can do the following:

Create a file called config.js

module.exports = global.config = {
    something: {
        somethingelse: {
            amount: 123,
            name: "Andrew"
        }
    }
};
Code language: JavaScript (javascript)

Then import the config file where you need it:

import './config';
Code language: JavaScript (javascript)

Then where you need it in your code:

global.config.something.somethingelse.amount
Code language: JavaScript (javascript)

or

global.config.something.somethingelse.name
Code language: JavaScript (javascript)