Install elm-test and elm-format by running npm install -g elm-test elm-format in a terminal
Errors and helpful tips will be shown whenever you save a file (Control + S)
Format on save (Control + S)
Suggests completions and snippets (Control + Space)
Lists all references to a type alias, module, custom type or function (Alt + Shift + F12)
Jump to the definition of a type alias, module, custom type or function
Shows type annotations and documentation on hover for type alia, module, custom type or function
Rename a type alias, module, custom type or function (F2)
Browse file by symbols (Control + Shift + O)
Browse workspace by symbols (Control + Shift + R)
Codelenses show how many times you calling a function and if it's exposed or not
This extension contributes the following settings:
elmLS.trace.server: Enable/disable trace logging of client and server communication
elmLS.elmPath: The path to your elm executable.
elmLS.elmFormatPath: The path to your elm-format executable.
elmLS.elmTestPath: The path to your elm-test executable.
elmLS.elmAnalyseTrigger: When do you want the extension to run elm-analyse? Might need a restart to take effect.
Most features don't seem to work for me?
This tool needs a valid elm project, please check if you have an elm.json. You can easily initialize your project with elm init. If it still does work, please try if you get the same behavior with the elm-spa-example.
Why do I need to install elm, elm-test and elm-format?
You will need to install elm and elm-test to get all diagnostics and elm-format for formatting. If your setup fails to find the global installations of those, you can use the settings panel in VSCode to set the paths to the executable manually. Alternatively you can also just install these to your local npm package.json.