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A component for rendering React components with editable source and live preview




Build Status


A component for rendering React Components and ES6 code with editable source and live preview

Component Playground



npm install component-playground

Set up

In the head of your html document, either add the css files from the demo or from a CDN like:

<link rel="stylesheet" href="//"/>
<link rel="stylesheet" href="//"/>

In your JSX, require the component and use it like this:

'use strict';

var React = require('react/addons');
var ReactDOM = require('react-dom');
var Playground = require('component-playground');
var Button = require('./components/button');

var componentExample = require("raw!./examples/component.example");

var Index = React.createClass({
  render() {
    return (
      <div className="component-documentation">
        <Playground codeText={componentExample} scope={{React: React, Button: Button}}/>

ReactDOM.render(<Index/>, document.getElementById('root'));




codeText takes a string of JSX markup as its value. While you can just pass it a string, I find it is easier to make a separate file and use Webpack's raw loader to load in the raw source. In the example above I use the .example extension, and an examples folder to organize my samples.

An example file would look like:

<Button style={{background: '#3498db'}}>Hi</Button>



When evaluating the JSX, it needs to be provided a scope object. At the very least, React needs to be provided to the scope, if any custom tags aren't being used. See below:

<Playground codeText={componentExample} scope={{React: React}}/>

Any module/component that is used inside the playground needs to be added to the scope object. See /demo for an example of how this works.



String specifying which CodeMirror theme to initialize with. Defaults to 'monokai'.



Allows the user to collapse the code block.

<Playground collapsableCode={true} codeText={componentExample} scope={{React: React}}/>



Makes collapsable code block initially expanded.

  scope={{React: React}}/>



A component class that will be used to auto-generate docs based on that component's propTypes. See propDescriptionMap below for how to annotate the generate prop docs.

<Playground docClass={MyComponent} codeText={componentExample} scope={{React: React}}/>



Annotation map for the docClass. The key is the prop to annotate, the value is the description of that prop.

    collapsableCode: "Allows the user to collapse the code block"
  scope={{React: React}}/>



Turns preview into a simple console for testing out ES6 code. Use console.log() in the playground to generate output.

  codeText={es6Example} />



Defaults to true. If set to false, allows you bypass the component-playground's component wrapper and render method. You can use this option to write higher order components directly in your example code and use your own Render method. NOTE: This option requires that the React.render method be in your code

var ComponentExample = React.createClass({
  render: function() {
    return (

React.render(<ComponentExample/>, mountNode);

Comparison to react-live

There are multiple options when it comes to live, editable React component environments. Formidable actually has two first class projects to help you out: component-playground and react-live. Let's briefly look at the libraries, use cases, and factors that might help in deciding which is right for you.

Here's a high-level decision tree:

  • If you want fast and easy setup and integration, then component-playground may be the ticket!
  • If you want a smaller bundle, SSR, and more flexibility, then react-live is for you!

Here are the various factors at play:

  • Build: component-playground uses babel-standalone, react-live uses bublé. (Note: react-live might make transpiler customizable in the future).
  • Bundle size: component-playground has a larger bundle, but uses a more familiar editor setup. react-live is smaller, but more customized editor around prism.
  • Ease vs. flexibility: react-live is more modular/customizable, while component-playground is easier/faster to set up.
  • SSR: component-playground is not server-side renderable, react-live is.
  • Extra features: component-playground supports raw evaluation and pretty-printed output out-of-the-box, while react-live does not.
  • Error handling: component-playground might have more predictable error handling than react-live in some cases (due to react-dom, although this might change with React 16).