When comparing Urlang 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 Urlang is ranked 38th. The most important reason people chose ElixirScript is:
Uncluttered, yet unambiguous syntax
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Pros
Pro Easy to use standard Javascript libraries like React
Pro Javascript with a sane syntax
Has a parenthetical lisp syntax but retains Jasvscript semantics.
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.