persist-object-property

readme.js

// Transparently persist an object property in localStorage.
// Usage:
//   persist(state, 'backgroundColor')
//   console.log(state.backgroundColor) // you can access the property on the object as usual.
//   state.backgroundColor = 'red'      // the value will persist across sessions.
module.exports = function persist(obj, key) {
  Object.defineProperty(obj, key, {
    get: () => localStorage.getItem(key),
    set: value => localStorage.setItem(key, value),
  })
}