SystemJS hot reloader store

Extremely simple utility for storing data across hot reloads.
Compatible with: systemjs-hot-reloader.
This works because the data is put in a seperate module that isn't reloaded. See: https://github.com/capaj/systemjs-hot-reloader#preserving-state

Install

jspm install systemjs-hot-reloader-store

Usage

import getHotReloadStore from './utils/getHotReloadStore.js';
const hotStore = getHotReloadStore('project:index'); // pick unique name

// retrieve stored or create new state
const state = hotStore.state || {
	counter: 0
};

// change state
state.counter += 1;

// store state
hotStore.state = state;

Redux example

import { createStore } from 'redux';
import getHotReloadStore from './utils/getHotReloadStore.js';
const hotStore = getHotReloadStore('project:store');

let prevState;
if (hotStore.prevStore) {
  prevState = hotStore.prevStore.getState(); 
}

export default function configureStore(reducers, initialState = prevState) {
  const store = createStore(reducers, initialState); 
  hotStore.prevStore = store;
  return store;
}