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https://github.com/jsdf/coffee-react-transform

DEPRECATED – Provides React JSX support for Coffeescript
https://github.com/jsdf/coffee-react-transform

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DEPRECATED – Provides React JSX support for Coffeescript

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README 

        
# Coffeescript React JSX Transformer



**[CoffeeScript 2 has JSX built in. You should use that instead](http://coffeescript.org/v2/#jsx)**



# STATUS: DEPRECATED



This tool is no longer maintained. If you need to transition your codebase from

it, a codemod is available to do so: [cjsx-codemod](https://github.com/jsdf/cjsx-codemod). You can also use [CoffeeScript 2, which has JSX built in.](http://coffeescript.org/v2/#jsx)



This project started as a way for me to explore how JSX could fit into

Coffeescript syntax, as a quickly hacked together prototype. While I never

really promoted it, it quickly took on a life of its own, and before long people

were asking for it to support all kinds of different use cases. On top of that I

had no experience writing parsers, so the result is something with 

[insurmountable limitations](https://github.com/jsdf/coffee-react/issues/32).



As I eventually stopped using Coffeescript I ended up neglecting this project,

but as people were using it I didn't want to kill it. I really should have,

however, because it meant that people were using a crappy, ill-conceived,

unmaintained tool. Now, long overdue, I'm putting it out to pasture.



Original readme follows:



Provides support for an equivalent of JSX syntax in Coffeescript (called CJSX) so you can write your React components with the full awesomeness of Coffeescript. [Try it out](https://jsdf.github.io/coffee-react-transform/).



#### Example



car-component.coffee



```coffee

Car = React.createClass

  render: ->

    

      

      

      
Which seat can I take? {@props?.seat or 'none'}


      {# also, this is an inline comment}

    

```



transform



```bash

cjsx-transform car-component.coffee

```



output



```coffee

Car = React.createClass

  render: ->

    React.createElement(Vehicle, {"doors": (4), "locked": (isLocked()), "data-colour": "red", "on": true},

      React.createElement(Parts.FrontSeat, null),

      React.createElement(Parts.BackSeat, null),

      React.createElement("p", {"className": "seat"}, "Which seat can I take? ", (@props?.seat or 'none'))

    )

```



### Getting Started

`coffee-react-transform` simply handles preprocessing Coffeescript with JSX-style markup into valid Coffeescript. Instead of using it directly, you may want to make use of one of these more high-level tools:

- [coffee-react](https://github.com/jsdf/coffee-react): a drop-in replacement for the `coffee` executable, for compiling CJSX.

- [node-cjsx](https://github.com/SimonDegraeve/node-cjsx): `require` CJSX files on the server (also possible with [coffee-react/register](https://github.com/jsdf/coffee-react)).

- [coffee-reactify](https://github.com/jsdf/coffee-reactify): bundle CJSX files via [browserify](https://github.com/substack/node-browserify), see also [cjsxify](https://github.com/SimonDegraeve/cjsxify).

- [cjsx-loader](https://github.com/KyleAMathews/cjsx-loader): loader module for Webpack.

- [react-coffee-quickstart](https://github.com/SimonDegraeve/react-coffee-quickstart): equivalent to [react-quickstart](https://github.com/andreypopp/react-quickstart).

- [coffee-react-quickstart](https://github.com/KyleAMathews/coffee-react-quickstart): Quickstart for building React single page apps using Coffeescript, Gulp, Webpack, and React-Router

- [sprockets preprocessor](https://github.com/jsdf/sprockets-coffee-react): use CJSX with Rails/Sprockets

- [ruby coffee-react gem](https://github.com/jsdf/ruby-coffee-react) for general ruby integration

- [vim plugin](https://github.com/mtscout6/vim-cjsx) for syntax highlighting

- [sublime text package](https://github.com/Guidebook/sublime-cjsx) for syntax highlighting

- [mimosa plugin](https://github.com/mtscout6/mimosa-cjsx) for the mimosa build tool

- [karma preprocessor](https://github.com/mtscout6/karma-cjsx-preprocessor) for karma test runner

- [broccoli plugin](https://github.com/ghempton/broccoli-cjsx) for the broccoli build tool



### CLI



```bash

cjsx-transform [input file]

```

Outputs Coffeescript code to stdout. Redirect it to a file or straight to the Coffeescript compiler, eg.

```bash

cjsx-transform examples/car.coffee | coffee -cs > car.js

```



### API

```coffee

transform = require 'coffee-react-transform'



transformed = transform('...some CJSX code...')

```



### Installation

From [npm](https://www.npmjs.org/):

```bash

npm install -g coffee-react-transform

```



#### Version compatibility

- 4.x - React >=0.14.x

- 3.x - React >=0.13.x <=0.14.x

- 2.1.x - React 0.12.1

- 2.x - React 0.12

- 1.x - React 0.11.2

- 0.x - React 0.11 and below



#### Spread attributes

JSX/CJSX 'spread attributes' allow merging in an object of props when creating an element, eg:

```coffee

extraProps = color: 'red', speed: 'fast'



```

which is transformed to:

```coffee

extraProps = color: 'red', speed: 'fast'

React.createElement("div", Object.assign({"color": "blue"},  extraProps)

```



If you use this syntax in your code, be sure to include a shim for `Object.assign` for browsers/environments which don't yet support it. [object.assign](https://www.npmjs.org/package/object.assign), [core-js](https://github.com/zloirock/core-js) and 

[es6-shim](https://github.com/es-shims/es6-shim) are some possible choices.



#### UMD bundle for the browser

If you want to use coffee-react-transform in the browser or under ExecJS or some other environment that doesn't support CommonJS modules, you can use this build provided by [BrowserifyCDN](wzrd.in), which will work as an AMD module or just a plain old script tag:



[http://wzrd.in/standalone/coffee-react-transform](http://wzrd.in/standalone/coffee-react-transform)



```html



  coffeeReactTransform('-> <a />');

  // returns '-> React.createElement("a", null)'



```



### Tests



`npm test` or `cake test` or `cake watch:test`



### Changelog



See [CHANGELOG.md](CHANGELOG.md).