Really weird JS pattern for generating sequential IDs with modules:
components/my-module.js
let id = 0;
export function generateThing(attrs) {
return Object.assign({
id: ++,
}, attrs);
}
index.js
import { generateThing } from './components/my-module';
generateThing().id; // 1
generateThing().id; // 2
generateThing().id; // 3
It works because the module itself keeps its own state. Modules are only ever imported once, and re-importing them reuses the existing module.
