Fable: List.nth

[nojaf]

Description

List.nth cannot be parsed.

Repro code

["a";"b";"c"] |> List.nth 1

Expected and actual results

nth element, "b"

Related information

• Fable version (dotnet fable --version): 1.1.7
• Operating system: Windows 10

[MangelMaxime]

According to MSDN doc you should use:

List.nth ["a";"b";"c"] 1

But indeed it's return null instead of b

[MangelMaxime]

Also, this construction is deprecated according to compiler warning.

This construct is deprecated. please use List.item

So you should used something like:

["a";"b";"c"] 
|> List.item 1

@alfonsogarciacaro Should Fable support List.nth even if deprecated ?

[alfonsogarciacaro]

The method is deprecated, it doesn't appear in the autocompletion and the signature is confusing (the list is the first argument unlike most of the other List functions) so I too recommend using List.item instead as @MangelMaxime suggests :+1:

[nojaf]

Ok, could something be added to the fable output to tell users that List.item should be used?

[alfonsogarciacaro]

There should be already the warning from the F# compiler.

[nojaf]

Apologies, I must have misted that.