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horseless.remodel

v2.0.2

Published

magical data binding

Downloads

16

Readme

horseless.remodel

Magical data binding.

Why?

We have our model. We build something based on the model. The model changes, we do it all again. It changes again, we remember that we're programmers and we automate... Then we build something else based on the model. And then something else. Can't we just say "whenever we do anything with the model automate it, like forever?

How does it work?

horseless.remodel exposes four methods: remodel, watchFunction, unwatchFunction, and after.

remodel(model)

remodel wraps a simple model (something you could JSON) and returns a proxy. Mutating the model's attributes through the proxy then triggers the watched functions that accessed those attributes.

watchFunction(f)

watchFunction runs the function it's passed and collects a list of attributes accessed by that function. It registers that function as a listener for any future change to those attributes.

unwatchFunction(f)

unwatchFunction removes the function it's passed from the list of valid listeners

after(f)

after adds a one time callback for after the current round of watched functions have executed

Usage

import { remodel, watchFunction } from 'horseless.remodel'

const model = remodel({ name:'Theon' })

function setGreeting () {
  document.querySelector('.greeting').innerText = `Hello ${model.name}`
}

watchFunction (setGreeting)

setTimeout(() => {
  model.name = 'Reek'
}, 5000)

Result: "Hello Theon" is displayed for five seconds after which "Hello Reek" is displayed

everything else

This repo contains about a hundred lines of pretty straight-forward code. Please take a peak in remodel.js. If you have questions or suggestions, I'd love to hear from you!