1. For F# you can can use both .NET and JavaScript libraries (with tool called Fable), so isn't a issue. 2. There a lot of ways to the that, which one with pro

1. For F# you can can use both .NET and JavaScript libraries (with tool called Fable), so isn't a issue. 2. There a lot of ways to the that, which one with pros and cons, but isn't a issue in my opinion 3. For imports there are a thing called AutoOpen that is strange at first. Just need to be carefull where to use 4. .NET documentation tend to be writed for C#. So you need to understand at least a little of C# if you want to use that libraries. But also there are a lot that can be use idiomaticaly with F#, so isn't a big issue.