Components and props

Nest specs with <${Child} /> in a template (or <Child /> if you compile JSX).

const Welcome = create({
  render() {
    return html`<p>${this.props.greeting ?? "Hello"}</p>`;
  },
});

const Page = create({
  render() {
    return html`<${Welcome} greeting="We meet again." />`;
  },
});

Each mount gets its own instance and its own state. When a parent re-renders, a child of the same type and key is reused: props update, state stays.

this.props.children is whatever was placed between the tags.

create() throws if render is missing. That is the only required field.