How to fix Babel 7 – ReferenceError: regeneratorRuntime is not defined with JavaScript?

To fix Babel 7 – ReferenceError: regeneratorRuntime is not defined with JavaScript, we install a few packages and then import them into our project.

We install the missing packages with

npm install --save core-js
npm install --save regenerator-runtime    

And then import them with

import "core-js/stable";
import "regenerator-runtime/runtime";

to let us use Babel in our project.