How can I format F# files using Ionide?

[lulunac27a]

I'm looking to format F# files using Ionide, is there is a formatter for Ionide?

[baronfel]

Yes - Ionide will guide you to installing Fantomas, the widely-used formatter for the F# ecosystem. Once installed, Ionide will transparently use Fantomas to format any F# code anytime the editor triggers formatting for F# source files.

[lulunac27a]

There is a Stack Overflow answer that uses Ionide.Ionide-fsharp in editor.defaultFormatter setting in VSCode.