Maxime Mangel

[TS] Direct access to `Value` of a `Nullable` fails Typescript compilation

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Hello, ```fs let nullableTestWorking (s: Nullable) = // Works because we have generate a type guard s != null if s.HasValue then s.Value.Length else 0 let nullableTestFailing (s: Nullable) =...

TimeSpan precision lost when creating big TimeSpan via another method than `FromTicks`

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Hello, ```fs printfn $""" Big TimeSpan value (Fable): %A{System.TimeSpan.FromDays(10675199).Ticks} Big TimeSpan value (.NET): 9223372036854775807L """ ``` ```text Big TimeSpan value (Fable): 9223371936000000000 Big TimeSpan value (.NET): 9223372036854775807L ``` This doesn't...

WIP: Nullable/Nullness support

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I am starting this PR early to avoid duplicate work regarding nullable/nullness support #3887

When working on #4007 , I wanted to add an integration test to cover comments generation but because right the Integration runs for JavaScript we can't test the TypeScript output....

[Fable 5] Source maps generation is broken

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### Description It seems like we are missing information about the original file file and the source., which cause Fable 5 to break if `--sourceMaps` is provided. To me it...

### Description It was reported here that "R" format is not supported by Fable, and I suspect some other format are missing too. https://github.com/microsoft/referencesource/blob/51cf7850defa8a17d815b4700b67116e3fa283c2/mscorlib/system/globalization/datetimeformat.cs#L99-L124 ### Related information * Fable version:...

Remove and deprecate `Fable.PublishUtils`

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### Description Fable.PublishUtils consist on list of utility tools which are used to release some of Fable packages. It was created a long time ago because FAKE and other solution...

[v3.0] Update feliz to jsx syntax, ensure tests pass

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Fable 5.0.0-alpha.13 has been released. This version of Fable, introduce optimized JSX output in order to avoid F# CEs to surface. This is the first stone needed in order to...

I think we have an issue for `uint64` and `int64` because the decoder accept to transform from a JSON number but we exceed the NUMBER SAFE range for these

[On this page ](https://thoth-org.github.io/Thoth.Json/documentation/auto/json-representation.html#tuple-with-no-arguments)