Communicating with Custom DOM Events
Learn to use the browser native CustomEvent API as a lightweight, framework-agnostic communication channel between micro frontends.
Why Native Events?
The browser already has a built-in pub/sub system: the DOM event model. Using it for MFE communication needs no library and works across any framework.
The CustomEvent API
CustomEvent lets you create your own named events carrying a detail payload, dispatched on any DOM element including window.
const evt = new CustomEvent("cart:add", {
detail: { productId: 42, qty: 1 }
});All lessons in this course
- Event Bus for Cross-App Communication
- Shared State Management
- Custom Communication Solutions
- Communicating with Custom DOM Events