Add ESlint

[pcanterini]

It might be a good idea to add ESlint and EditorConfig to help with consistency.

I've recently started using standardjs but it's probably a preference thing based on your code style.

[GordyD]

Good call!

I am on the fence as to which tool (ESLint and Standard) is the best option. On the one hand, seeing standard (thanks for sharing this), it looks great because it is just plug and play - it will not detract from the main focus of this repo. But on the other, as this is a demo/bootstrap repo - it might make sense to use a linting tool that allows for custom rules (although I wouldn't want to get too bogged down in debate so I would probably opt for using Airbnb's eslint rules).

Which do you think is best here?

[pcanterini]

I vote for consistency too so if you think extending from Airbnb's presets is the closest I'm fine with that. 👍

[GordyD]

Ok. EsLint + Airbnb + EditorConfig sounds good.

For EditorConfig I think the most important rule is:

[*.js]
indent_style = space
indent_size = 2

Anything else?

[pcanterini]

LGTM