A few months ago, we introduced a preview of F# hints – the type and parameter name hints. Since then, we’ve fine-tuned them, added return type hints, and incorporated tooltips for all of them.
Explore the entire experience here:
Code
type Song = {
Artist: string
Title: string
}
type Playlist(songs) =
member _.Add(artist, title) =
{ Artist = artist; Title = title } :: songs
member _.Shuffle() =
Algorithms.randomize songs
Overview
In this code, you can spot type hints, return type hints, and parameter name hints.
Note that all hints now feature tooltips:
Also, we refrain from displaying hints for certain obvious scenarios:
Enabling the Hints
These hints remain in preview and off by default.
You can configure each of them separately in options (Go to Tools -> Options -> Text Editor -> Advanced):
Looking Forward and Getting Involved
In the long run, we aim to implement a hotkey for toggling hints, make them less intrusive, and include signature hints. You can find the full roadmap in this issue, and all related tickets are available using this query. Many of them are good first issues, and we warmly welcome any contributions!
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source https://devblogs.microsoft.com/dotnet/improved-fsharp-hints-in-visual-studio/