今天看 js 的 proposal-class-fields 提案的一个 issue，笑死了

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关于 js 私有属性的新语法

class Counter extends HTMLElement {
  #x = 0;

  clicked() {
    this.#x++;
    window.requestAnimationFrame(this.render.bind(this));
  }

  constructor() {
    super();
    this.onclick = this.clicked.bind(this);
  }

  connectedCallback() { this.render(); }

  render() {
    this.textContent = this.#x.toString();
  }
}
window.customElements.define('num-counter', Counter);

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                   __________\
                  /          \\\
                 /    REST    \\\
                /      IN      \\\
               /     PEACE      \\\
              /                  \\\
              |       es         |\
              |                  |\
              |   killed by a    |\
              |  private-fields  |\
              |       2018       |\
             *|     *  *  *      | *\
     ________)/\\\\_//(\\/(/\\)/\\//\\/|_)_______

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this Counter onfr clicked