set up and run prettier

[hipstersmoothie]

Prettier has become the standard for JavaScript formatting. Adding it to the repo makes contribution and PR review easier.

[jesec]

I agree that we should use prettier.

But we have to deal with ESLint first.

[robertsLando]

We should firstly remove the eslint-klopov and use standard eslints

[leerob]

I have opinions:

• Single quotes
• No semicolons (can be persuaded)

I'm fine with whatever order you prefer - Prettier first, then ESLint, or vice verse.

[hipstersmoothie]

I prefer the prettier defaults, but that's only because I don't care too much. What does everyone here think? Should we go with the default @leerob suggested?

[hipstersmoothie]

I'll fix/update the eslint configs as a follow up PR

[hipstersmoothie]

I've switched the prettier defaults to singleQuote: true to match the format of the current code. Some tests actually have the semi baked in to some of the assertions.

[hipstersmoothie]

Think this one is good to merge

[hipstersmoothie]

I think after the prettier and eslint work is merged next steps I'd like to take are:

1. TypeScript conversion
2. Enforce jsDoc on all functions

[leerob]

Do I need to turn off some of these checks? Which ones do we need? Just the top 3?

[hipstersmoothie]

@leerob I think I saw @robertsLando commend on another thread that those 3 are the only required ones at the moment