A minimalist component class inspired by React and Web Components.

• Tonic is tiny. About 150 lines of code.
• React-like component composition.
• One-way binding; pipe data though connected components.
• Prefer event delegation over individual event listeners.
• Prefer Javascript Template Literals to weird Template Langauges.
• Unopinionated about Routers, Reducers, Validators, etc.

• When re-rendering performance is truly important, a virtual dom is not the right tool. In these cases you should either A. update some specific dom nodes directly or B. use a graphics/animation engine. The one-way-everywhere approach might make some code easy to reason about, but it ends up being a performance compromise with added complexity.
• "Isomorphic" components add a huge amount of complexity to a component library. I don't send html from a server very often. My html pages are pretty static and served by a cdn. Otherwise, I'm creating electron apps for the decentralized web. This may be a deal breaker for some people doing more traditional client-server development.
• JSX
• Magic

You can find an api doc here, a trouble shooting guide here, and a bunch of examples here.

npm install @conductorlab/tonic

class Greeting extends Tonic {
  stylesheet () {
    return `
      greeting div {
        display: inline-block;
        border: 1px dotted #666;
        height: 100px;
        width: 100px;
        line-height: 90px;
      }
    `
  }

  click (event) {
    alert(this.innerHTML)
  }

  render () {
    return this.html`
      <h1 class="example">
        ${this.props.value}
      </h1>
    `
  }
}

Tonic.add(Greeting)

<greeting value="Hello, World">
</greeting>