In this lesson we'll learn how to write Vanilla JavaScript (JavaScript that's free of libraries and tools) to write and load ES Modules (EcmaScript Modules, like `import` and `export` syntax) directly in the browser. This is based on my blog post: [Super Simple Start to ESModules in the Browser](https://kentcdodds.com/blog/super-simple-start-to-es-modules-in-the-browser)