Jonggrang Core

This library provide a way to manage state on your application as well how to update it using action message, similiar to Elm application does. Unlike Redux, it capable manage side effects and doesn't have concept middleware.

It manage effects via Task, similiar to Promise. The difference is, it lazy and monadic.

The core function of this library is application, this function expect an object with key:

• update: a function that accept an action and current state and return EffModel
• init: The initial state of the application
• subscription: a function that accept current state and return EffModel
• EffModel is an object that have key state, and effects. The effects are an array of Task, we will fork it and the result will feed back to update function. When returned by update function, the state field is used as application current state.

application function return an object with field:

• state: a stream of state
• action: a stream that can be used to send action message to the application.