On the .dev blog Jacob Bennett shared some nice refactorings using arrow functions.

Recently when refactoring a Vue 1.0 application, I utilized ES6 arrow functions to clean up the code and make things a bit more consistent before updating to Vue 2.0. Along the way I made a few mistakes and wanted to share the lessons I learned as well as offer a few conventions that I will be using in my Vue applications moving forward.

https://dotdev.co/clean-up-your-vue-modules-with-es6-arrow-functions-2ef65e348d41