event-emitter

A helper module for creating objects with event emitter capabilities.

Installation

npm

``bash
npm install --save @braintree/event-emitter
`

This module uses commonjs. You must use a build tool such as Browserify or Webpack to include it in your frontend project.

Usage

$3

`js
import EventEmitter from "@braintree/event-emitter";

class MyClass extends EventEmitter() {
// my class definition
}

const emitter = new MyClass();
`

$3

`js
emitter.on("event-name", function (data) {
console.log("called with", data.payload, "!");
});

emitter.emit("event-name", { payload: "foo" }); // logs "called with foo!"
`

$3

`js
const cb = function () {};

emitter.on("event-name", cb);
emitter.off("event-name", cb);

emitter.emit("event-name", { payload: "foo" }); // cb is not called
`

Tests

`bash
npm test
``