mobx-introduction_MST_composition

Temperature.js

const TemperatureModel = types.model({
	id: types.string,
	value: types.number
})

const CelsiusTemperature = types.compose (
	TemperatureModel, 
	types
		.model ({})
		.views (state => ({
				get farenheight () {
					return (state.celsius * (9/5)) + 32
				},	
		}))
)

const FarenheightTemperature = types.compose (TemperatureModel, ...)