DevTools for MobX to track the rendering behavior and data dependencies of your app.

npm install --save-dev mobx-react-devtools

or

<script src="https://npmcdn.com/mobx-react-devtools"></script>

Somewhere in your application, create a DevTools component:

import DevTools from 'mobx-react-devtools';

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

or

React.createElement(mobxDevtools.default)

Supported props:

• hightlightTimeout — number, default: 1500
• position — object, position of control panel, default: { top: 0, right: 20 }

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

• 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

4.0.5

• Added Object.assign polyfill to avoid issues with server side rendering on old node vesions

4.0.2

• Make sure AMD / root imports work (#12)
• DevTools should now 'work' (not do anything) when used in Isomorphic rendering (#11)
• Highlighting boxes now show up at the proper coordinates when using complex stacking contexts

4.0.1

• Added typescript typings (see #6)
• Use (fix) uglify, by @evoyy
• Added option to customize the position of the toolbar (by @evoyy)

4.0.0

• Upgraded to MobX 2.0 / MobX React 3.0