Piglets to the rescue Declarative User Interface Specification with Pluggable View Models

Abstract This paper introduces Pluggable Interactive GUI-lets (or Piglets, for short) as a mean for constructing reusable, reactive graphical user interfaces that can be instantiated over different view models and presentation layers. Piglets therefore provide an attractive alternative for pragmatic user interface specification that can target multiple content delivery channels from the same declarative, type-safe user interface definition, keeping programmers happy and highly productive

Reactive single-page applications with dynamic dataflow

Modern web applications are heavily dynamic. Several approaches, including functional reactive programming and data binding, allow a presentation layer to automatically reflect changes in a data layer. However, many of these techniques are prone to unpredictable memory performance, do not make guarantees about node identity, or cannot easily express dynamism in the dataflow graph. We identify a point in the design space for the creation of statically-typed, reactive, dynamic, single-page web applications for the WebSharper framework in the functional-first language F#. We provide an embedding abstraction to link a dynamic dataflow graph to a DOM presentation layer in order to implement dynamic single-page applications, and show how the technique can be used to support declarative animation