actions.ts

import { ActionsType, ActionResult } from "hyperapp"
import { State } from "./state"

export interface Actions {
  down: (value: number) => (state: State) => ActionResult<State>;
  up:   (value: number) => (state: State) => ActionResult<State>;
}

export const actions: ActionsType<State, Actions> = { 
  down: (value: number) => (state) => {
    return { count: state.count - value }
  },  

  up: (value: number) => (state) => {
    return { count: state.count + value }
  }
}