primus/eventemitter3 2.0.0

Performance improvements

on GitHub

This release comes with some nice optimizations which make 2.0.0 our fastest release ever. If you are curious you can see the results of our benchmarks here: https://github.com/primus/eventemitter3/blob/master/benchmarks/README.md.

Breaking changes

The reason for the major version bump is that there is a small breaking change.
With eventemitter3@<2.0.0 you could inherit from the EventEmitter class without calling the super constructor.

var EventEmitter = require('eventemitter3');

function MyEmitter() {}

MyEmitter.prototype = Object.create(EventEmitter.prototype, {
  constructor: { value: MyEmitter }
});

With eventemitter3@2.0.0 this no longer works. Super constructor invocation is required.

var EventEmitter = require('eventemitter3');

function MyEmitter() {
  EventEmitter.call(this);
}

MyEmitter.prototype = Object.create(EventEmitter.prototype, {
  constructor: { value: MyEmitter }
});