@polymer/polymer/polymer-element.js

The Polymer library makes it easy to create your own web components. Give your element some markup and properties, and then use it on a site. Polymer provides features like dynamic templates and data binding to reduce the amount of boilerplate you need to

/**
@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
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
*/

import { ElementMixin, version } from './lib/mixins/element-mixin.js';
export { html } from './lib/utils/html-tag.js';

export { version };

/**
 * Base class that provides the core API for Polymer's meta-programming
 * features including template stamping, data-binding, attribute deserialization,
 * and property change observation.
 *
 * @customElement
 * @polymer
 * @constructor
 * @implements {Polymer_ElementMixin}
 * @extends HTMLElement
 * @appliesMixin ElementMixin
 * @summary Custom element base class that provides the core API for Polymer's
 *   key meta-programming features including template stamping, data-binding,
 *   attribute deserialization, and property change observation
 */
export const PolymerElement = ElementMixin(HTMLElement);