Skip to content

Instantly share code, notes, and snippets.

@matthewp
matthewp / decorate-element.js
Last active April 23, 2020 07:57
decorate-element
function decorate(tag, template) {
customElements.define(tag, class extends HTMLElement {
constructor() {
super();
this.attachShadow({ mode: 'open' });
}
connectedCallback() {
let root = this.shadowRoot;
if(!root.firstChild) {
@addyosmani
addyosmani / flexbox-layout.css
Created January 29, 2017 19:31
Flexbox layout helper classes
/*
Flexbox CSS helpers from the Polymer team. Extracted from https://github.com/PolymerElements/iron-flex-layout for use as just CSS.
Docs: https://elements.polymer-project.org/guides/flex-layout
@license
Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
@developit
developit / example.js
Last active May 6, 2024 05:10
Preact + Web Components = <333 Demo: http://www.webpackbin.com/VJyU9wK5W
import { h, Component } from 'preact';
import Markup from 'preact-markup';
import register from './preact-custom-element';
// just a proxy component: WC -> Preact -> WC
const A = () => <x-b foo="initial foo from <x-a>" />;
// stateful component that can re-render
class B extends Component {
render(props, state) {