This is an implementation of the
EventEmitter class that can be used on web projects as a dependency, based on the Node.js EventEmitter documentation.
Table of contents
To install this project via NPM (make sure you have Node.js installed):
$ npm install web-event-emitter --save
In order to use it in your web project, add as a script:
Now, the EventEmitter class will be visible in the global scope.
These builds are available at the moment:
src/EventEmitter.js: Original ES6 code (not minified)
dist/eventemitter.es5.js: Transpiled ES5 code (not minified)
dist/eventemitter.es5.min.js: Transpiled ES5 code (minified)
Creating a new instance
let ee = ;
This will create a new event emitter, so you can use it to register or emit events.
Registering a listener
Registering a new listener for the 'my-event' event:
You can have as many arguments in your listener as you want.
Emitting an event
Now, if you emit the event:
The output will be:
'My event' has been emitted: Hello World
If you want to run the tests (on Windows):
$ npm test
This will open the HTML test page located in
./test/test.html. You can also open it manually if you want.