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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <!--
Reactive component example, as described on https://component.kitchen/blog/posts/a-compact-javascript-mixin-for-creating-native-web-components-in-frpreact-style
-->

<template id="template">
  <button id="decrement">-</button>
  <span id="value"></span>
  <button id="increment">+</button>
</template>

<increment-decrement value="10"></increment-decrement>

            
          
!
            
              import ReactiveMixin from 'https://unpkg.com/elix@3.4.1/src/ReactiveMixin.js';
import * as symbols from 'https://unpkg.com/elix@3.4.1/src/symbols.js';

// Create a native web component with reactive behavior.
class IncrementDecrement extends ReactiveMixin(HTMLElement) {

  // Allow the value property to be set via an attribute.
  attributeChangedCallback(attributeName, oldValue, newValue) {
    if (attributeName === 'value') {
      this.value = parseInt(newValue);
    }
  }

  // This property becomes the value of this.state at constructor time.
  get defaultState() {
    return { value: 0 };
  }

  // Expose "value" as an attribute.
  static get observedAttributes() {
    return ['value'];
  }

  // Provide a public property that gets/sets state.
  get value() {
    return this.state.value;
  }
  set value(value) {
    this.setState({ value });
  }

  // Render the current state to the DOM.
  //
  // ReactiveMixin invokes this method when the state changes. This method
  // would typically invoke a rendering engine (virtual-dom, lit-html,
  // etc.).
  //
  // In this example, we'll just populate the DOM with an HTML template,
  // then update the DOM directly with DOM API calls. This actually isn't
  // so bad, and is the fastest possible way to render state to the DOM.
  [symbols.render]() {
    if (!this.shadowRoot) {
      // First time we render, create the shadow subtree.
      const root = this.attachShadow({ mode: 'open' });
      const template = document.querySelector('#template');
      const clone = document.importNode(template.content, true);
      root.appendChild(clone);
      // Wire up event handlers.
      root.querySelector('#decrement').addEventListener('click', () => {
        this.value--;
      });
      root.querySelector('#increment').addEventListener('click', () => {
        this.value++;
      });
    }
    // Render the state into the shadow.
    this.shadowRoot.querySelector('#value').textContent = this.state.value;
  }

}

customElements.define('increment-decrement', IncrementDecrement);
            
          
!
999px
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