What is Prettier?
Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.
Prettier is a tool in the Code Review category of a tech stack.
Why developers like Prettier
Customizable
Open Source
Atom/VSCode package
Follows the Ruby Style Guide by default
Runs offline
Completely free