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@polymer/iron-localstorage
Advanced tools
⚠️ This element is deprecated ⚠️
<iron-localstorage>
Element access to Web Storage API (window.localStorage) by keeping value
property in sync with localStorage.
Value is saved as json by default.
See: Documentation, Demo.
Usage
Installation
npm install --save @polymer/iron-localstorage
In an html file
<html>
<body>
<iron-localstorage name="my-app-storage"></iron-localstorage>
<script type="module">
import '@polymer/iron-localstorage/iron-localstorage.js';
const ls = document.querySelector('iron-localstorage');
// initializes default if nothing has been stored
function initializeDefaultCartoon() {
ls.value = {
name: "Mickey",
hasEars: true
};
}
ls.addEventListener(
'iron-local-storage-load-empty', initializeDefaultCartoon);
// use path set api to propagate changes to localstorage
function makeModifications() {
ls.set('value.name', "Minions");
ls.set('value.hasEars', false);
}
</script>
</body>
</html>
In a Polymer 3 element
import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/iron-localstorage/iron-localstorage.js';
class SampleElement extends PolymerElement {
static get template() {
return html`
<iron-localstorage name="my-app-storage"
value="{{cartoon}}"
on-iron-localstorage-load-empty="initializeDefaultCartoon">
</iron-localstorage>
`;
}
static get properties() {
return {
cartoon: { type: Object },
}
}
// initializes default if nothing has been stored
initializeDefaultCartoon() {
this.cartoon = {
name: "Mickey",
hasEars: true
}
}
// use path set api to propagate changes to localstorage
makeModifications() {
this.set('cartoon.name', "Minions");
this.set('cartoon.hasEars', false);
}
}
customElements.define('sample-element', SampleElement);
Contributing
If you want to send a PR to this element, here are the instructions for running the tests and demo locally:
Installation
git clone https://github.com/PolymerElements/iron-localstorage
cd iron-localstorage
npm install
npm install -g polymer-cli
Running the demo locally
polymer serve --npm
open http://127.0.0.1:<port>/demo/
Running the tests
polymer test --npm
Keywords
FAQs
Provides access to local storage
We found that @polymer/iron-localstorage demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 11 open source maintainers collaborating on the project.
Package last updated on 14 Sep 2018
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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