When comparing F# (via FunScript) vs ElixirScript, the Slant community recommends ElixirScript for most people. In the question“What are the best languages that compile to JavaScript? ” ElixirScript is ranked 26th while F# (via FunScript) is ranked 36th. The most important reason people chose ElixirScript is:
Uncluttered, yet unambiguous syntax
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Pros
Pro Easier transition from other paradigms
Since F# is not a purely functional language, it lends itself to being more easily picked up by programmers that have experience with other paradigms.
Pro Concise syntax
F#'s syntax tends to be terse while remaining very readable and easy to understand without being a chore to write.
Pro Runs on the CLR
Since F# runs on the Common Language Runtime or CLR, it has access to the entire .NET Framework, as well as libraries written in other .NET languages such as C#, VB.NET, and C++/CLI.

Pro Clear syntax
Uncluttered, yet unambiguous syntax

Pro Excellent community
The Elixir community has proved to be welcoming and very supportive.
Pro Great for concurrency
Leverages the existing Erlang BEAM VM
Pro More familiar syntax
All of the benefits of Erlang; without as steep a learning curve of prolog based syntax. Elixir is heavily inspired by Ruby's syntax which many people love.
Pro Great documentation
Elixir's documentation is very good. It covers everything and always helps solving any problem you may have. It's also always available from the terminal.
Cons
Con Not really cross platform
Though the community sites are touting F# can be cross platform through use of Mono, the reality is that it is more of a hack to replay on larger mono applications in production.
