ECMAScript Cookbook

How to do it...

1. Create a new folder with an index.html file, as seen in Exporting/importing multiple modules for external use.
2. Inside of that directory, create a folder named rockets.
3. Inside of rockets, create three files: falcon-heavy.js, saturn-v.js, and launch-sequence.js:

// falcon-heavy.js import { launchSequence } from './launch-sequence.js'; export const name = "Falcon Heavy"; export const COUNT_DOWN_DURATION = 5; export function launch () { launchSequence(COUNT_DOWN_DURATION, name); } (COUNT_DOWN_DURATION); } // saturn-v.js import { launchSequence } from './launch-sequence.js'; export const name = "Saturn V"; export const COUNT_DOWN_DURATION = 10; export function launch () { launchSequence(COUNT_DOWN_DURATION, name); } // launch-sequence.js ...