babel-autobind (npm): it binds methods  to its class prototype + Compatible with stub/spy used on unit-test frameworks (Sinon.Js, enzyme,...so on) + Can be integrated with 3rd party decorators (like @autobind decorator)
Keywords: autobind|decorator|test|stub|sinon|mocky|spy|react|babel|bind|prototype|addon|unit-test|expect|autobind-decorator|enzyme