examples/framework-lit/src/components/Counter.js


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import { LitElement, html } from 'lit';

export const tagName = 'my-counter';

class Counter extends LitElement {
  static get properties() {
    return {
      count: {
        type: Number
      }
    };
  }

  constructor() {
    super();
    this.count = 0;
  }

  increment() {
    this.count++;
  }

  render() {
    return html`
      <div>
        <p>Count: ${this.count}</p>

        <button type="button" @click=${this.increment}>Increment</button>
      </div>
    `;
  }
}

customElements.define(tagName, Counter);