How to fix "this is undefined" in Vue
September 2018 You're happily coding along, loving how awesome Vue is, when it strikes. Your VueJS app doesn't work, and you get an error that says: this is undefined Don't worry, you're not alone - I've run into this issue countless times, and I'll show you just how to solve it.
https://michaelnthiessen.com/this-is-undefined/
