How to use trailingComma: "all"?

[Glavin001]

See docs:

https://prettier.io/docs/en/options.html#trailing-commas

See code:

https://github.com/Unibeautify/beautifier-prettier/blob/master/src/options.ts#L60-L72

Only supports es5.

[stevenzeck]

The way I implemented it with ESLint is true = always and false = never. But it can be extended to use (or not use) against arrays, objects, functions, etc. See https://eslint.org/docs/rules/comma-dangle.

Maybe a simple boolean isn't the right data type for trailing comma?

[Glavin001]

Maybe a simple boolean isn't the right data type for trailing comma?

I think you may be correct. This is going to require some changes 🔥.