ReasonML: The powerful JavaScript Transpiler in Check

Who is looking for a Transpiler for JavaScript, pushes, more recently, on ReasonML. How does the young language, compared to Elm, and how to get started? An Overview.

In Web environments, even without the JavaScript programming language. Accordingly, also popular as the target language for Transpiler – so the Compiler to translate the source code of a programming language into the source code of another programming language. Teams of developers rely on Transpiler languages such as TypeScript, ReasonML, and Elm, because these advantages, such as static typing, the language use of modern-bring Features or a better Syntax for functional programming.

In particular, the static typing and functional programming are particularly interesting. Static typing can help errors at an early stage to detect, and the Compiler can statically optimize typed Code is often better. In addition, integrated development environments (IDE) to provide a better auto-completion. Functional programming helps with concepts such as Immutability, i.e., constant values, and the stateless programming model to develop Code that will read lighter and easier to maintain. At this point, the view is worth it, and disadvantages of each Transpiler languages, to give developers an aid to decision-making, for which the project which language is suitable.

Elm is closer to Haskell and other concepts of functional programming. Developers will appreciate the Transpiler language, especially for the User Experience and the lack of historical Contaminated sites. In addition, the standard libraries convince them with concepts and amazing consistency of thought. That Elm combines his love of language concepts with a Framework for Web development, is another advantage. The so-called “Elm architecture” is exemplary: The State Management has set outside of the Community and, for example, served as a model for the JavaScript library Redux. The standard example from the Elm Tutorial is a counter that can be changed by the push of a button to increase or decrease:

main =
Browser.sandbox { init = 0, update = update, view = view }
type Msg = Increment | Decrement
update msg model =
case msg of
Increment ->
model + 1

Decrement ->
model - 1

view model =
div []
[ button [ onClick Decrement ] [ text "-" ]
, div [] [ text (String.fromInt model) ]
, button [ onClick Increment ] [ text "+" ]
]

However, the interaction with existing JavaScript libraries and Frameworks for Elm Apps is rather difficult. This has for example led to the “Backend-as-a-Service”providers Dark turned from Elm and its complete platform to ReasonML has converted.

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