@doars/doars-persist

---

@doars/doars-persist

Plugin that adds cookies, local storage, and sessions storage contexts to get and set persistent data.

Install

From NPM

Install the package from NPM, then import and enable the library in your build.

npm i @doars/doars @doars/doars-persist

// Import library.
import Doars from '@doars/doars'
import DoarsPersist from '@doars/doars-persist'

// Setup a library instance.
const doars = new Doars()

// Setup the plugin.
const doarsPersist = DoarsPersist(doars /*, options */)

// Enable library.
doars.enable()

IIFE build from jsDelivr

Add the IIFE build to the page from for example the jsDelivr CDN and enable the library.

<!-- Import library. -->
<script src="https://cdn.jsdelivr.net/npm/@doars/doars@3/dst/doars.iife.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@doars/doars-persist@3/dst/doars-persist.iife.js"></script>
<script type="application/javascript">
  document.addEventListener('DOMContentLoaded', () => {
    // Setup a library instance.
    const doars = new window.Doars()

    // Setup the plugin.
    const doarsPersist = window.DoarsPersist(doars /*, options */)

    // Enable library.
    doars.enable()
  })
</script>

ESM and IIFE builds are available via the jsDelivr CDN.

Contexts

The following contexts are added by the plugin.

$cookies

Access the cookies object.

Examples

<!-- Sets a 'hello' cookie to 'world' -->
<div d-initialize="$cookies.hello = 'world'"></div>

<!-- Logs the 'hello' cookie the console -->
<div d-initialize="console.log($cookies.hello)"></div>

<!-- Deletes the 'hello' cookie -->
<div d-initialize="$cookies.hello = null"></div>

$localStorage

Access the local storage object.

Examples

<!-- Sets a 'hello' value on local storage to 'world' -->
<div d-initialize="$localStorage.hello = 'world'"></div>

<!-- Logs the 'hello' value from local storage the console -->
<div d-initialize="console.log($localStorage.hello)"></div>

<!-- Deletes the 'hello' local storage value -->
<div d-initialize="$localStorage.hello = null"></div>

$sessionStorage

Access the session storage object.

Examples

<!-- Sets a 'hello' value on session storage to 'world' -->
<div d-initialize="$sessionStorage.hello = 'world'"></div>

<!-- Logs the 'hello' value from session storage the console -->
<div d-initialize="console.log($sessionStorage.hello)"></div>

<!-- Deletes the 'hello' session storage value -->
<div d-initialize="$sessionStorage.hello = null"></div>

API

DoarsPersist

• constructor Create plugin instance.
  • @param {Doars} library A doars library instance.
  • @param {object} options = null See options.
  • @returns {DoarsPersist}
• disable Disables the plugin. Can only be called when the doars is disabled.
• enable Enables the plugin. Can only be called when the doars is disabled.

DoarsPersist options

• {boolean} cookiesContextDeconstruct = false Whether to deconstruct the context so when accessing the properties you do not need to prefix it with $cookies. Do note the $cookies context will be checked after the $for and $state contexts since the $cookies context is inserted before the others. This means that when a property exists on both the cookies and state the value from the state will be returned.
• {string} cookiesContextName = '$cookies' The name of the cookies context.
• {boolean} localStorageContextDeconstruct = false Whether to deconstruct the context so when accessing the properties you do not need to prefix it with $localStorage. Do note the $localStorage context will be checked after the $for and $state contexts since the $localStorage context is inserted before the others. This means that when a property exists on both the local storage and state the value from the state will be returned.
• {string} localStorageContextName = '$localStorage' The name of the local storage context.
• {boolean} sessionStorageContextDeconstruct = false Whether to deconstruct the context so when accessing the properties you do not need to prefix it with $sessionStorage. Do note the $sessionStorage context will be checked after the $for and $state contexts since the $sessionStorage context is inserted before the others. This means that when a property exists on both the session storage and state the value from the state will be returned.
• {string} sessionStorageContextName = '$sessionStorage' The name of the session storage context.

Compatible versions

@doars/doars-persist version	@doars/doars version
3.x	3.x