mobservable-react-devtools

Installation

npm install mobservable-react-devtools --save-dev

Usage

Somewhere in your application, create a DevTools component:

import DevTools from 'mobservable-react-devtools';

class MyApp extends React.Component {
  render() {
    return (
      <div>
        ...
        <DevTools />;
      </div>
    );
  }
}

Supported props:

• hightlightTimeout — number, default: 1500.

From there on, after each rendering a reactive components logs the following three metrics:

1. Number of times the component did render so far.
2. The time spend in the render() method of a component
3. The time spend from the start of the render() method until the changes are flushed to the DOM.

For each component the color indicates roughly how long the coloring took. Rendering times are cummalitive; they include time spend in the children.

• Green: less then 25 ms.
• Orange: less then 100 ms.
• Red: rendering for this component took more than 100ms.

Roadmap

• ~~Be able to turn dev-tools on and off at runtime.~~
• ~~Select and log dependency tree of components.~~
• Visualize observer tree values
• ~~Be able to enable state change tracking from the extras module~~