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# purs-loader
> [PureScript](http://www.purescript.org) loader for [webpack](http://webpack.github.io)
## Install
Install with [npm](https://npmjs.org/package/purs-loader)
```
npm install purs-loader --save-dev
```
## Options
###### `noPrelude` (Boolean)
Toggles `--no-prelude` that omits the Prelude.
###### `noTco` (Boolean)
Toggles `--no-tco` that disables tail-call optimizations.
###### `noMagicDo` (Boolean)
Toggles `--no-magic-do` that disables optimizations overloading the do keyword generating efficient code for the `Eff` monad.
###### `noOpts` (Boolean)
Toggles `--no-opts` that skips the optimization phase.
###### `verboseErrors` (Boolean)
Toggles `--verbose-errors` that displays verbose error messages.
###### `comments` (Boolean)
Toggles `--comments` that includes comments in generated code.
###### `output` (String)
Sets `--output=<string>` the specifies the output directory, `output` by default.
###### `noPrefix` (Boolean)
Toggles `--no-prefix` that does not include the comment header.
###### `requirePath` (String)
Sets `--require-path=<string>` that specifies the path prefix to use for `require()` calls in the generated JavaScript.
###### `ffi` (String Array)
Specifies the PureScript FFI files setting `--ffi=<string>`. Glob syntax is supported. This option is specified as `ffi[]=path`.
###### `src` (String Array)
Specifies the PureScript source files. Glob syntax is supported. This option is specified as `src[]=path`.
## Example
```js
// webpack.config.js
var path = require('path');
var srcs = ['src[]=bower_components/purescript-*/src/**/*.purs', 'src[]=src/**/*.purs'];
var ffis = ['ffi[]=bower_components/purescript-*/src/**/*.js'];
var output = 'output';
var modulesDirectories = [
'node_modules',
// The bower component for purescript-prelude is specified here to
// allow JavaScript files to require the 'Prelude' module globally.
'bower_components/purescript-prelude/src',
// The output directory is specified here to allow PureScript files in
// your source to import other PureScript modules in your source.
output
];
var config
= { entry: './src/entry'
, output: { path: __dirname
, pathinfo: true
, filename: 'bundle.js'
}
, module: { loaders: [ { test: /\.purs$/
, loader: 'purs-loader?output=' + output + '&' + srcs.concat(ffis).join('&')
} ] }
, resolve: { modulesDirectories: modulesDirectories
, extensions: ['', '.js', '.purs']
}
, resolveLoader: { root: path.join(__dirname, 'node_modules') }
}
;
module.exports = config;
```
See the [example](https://github.com/ethul/purs-loader/tree/master/example) directory for a complete example.
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