var ExtractTextPlugin = require("extract-text-webpack-plugin");
module.exports = {
module: {
loaders: [
{ test: /\.css$/, loader: ExtractTextPlugin.extract("style-loader", "css-loader") }
]
},
plugins: [
new ExtractTextPlugin("styles.css")
]
}
It moves every require("style.css")
in entry chunks into a separate css output file. So your styles are no longer inlined into the javascript, but separate in a css bundle file (styles.css
). If your total stylesheet volume is big, it will be faster because the stylesheet bundle is loaded in parallel to the javascript bundle.
Advantages:
- Fewer style tags (older IE has a limit)
- CSS SourceMap (with
devtool: "source-map"
andcss-loader?sourceMap
) - CSS requested in parallel
- CSS cached separate
- Faster runtime (less code and DOM operations)
Caveats:
- Additional HTTP request
- Longer compilation time
- More complex configuration
- No runtime public path modification
- No Hot Module Replacement
new ExtractTextPlugin([id: string], filename: string, [options])
-
id
Unique ident for this plugin instance. (For advanded usage only, by default automatic generated) -
filename
the filename of the result file. May contain[name]
,[id]
and[contenthash]
.-
[name]
the name of the chunk -
[id]
the number of the chunk -
[contenthash]
a hash of the content of the extracted file
-
-
options
-
allChunks
extract from all additional chunks too (by default it extracts only from the initial chunk(s)) -
disable
disables the plugin
-
The ExtractTextPlugin
generates an output file per entry, so you must use [name]
, [id]
or [contenthash]
when using multiple entries.
ExtractTextPlugin.extract([notExtractLoader], loader, [options])
Creates an extracting loader from an existing loader.
-
notExtractLoader
(optional) the loader(s) that should be used when the css is not extracted (i.e. in an additional chunk whenallChunks: false
) -
loader
the loader(s) that should be used for converting the resource to a css exporting module. -
options
-
publicPath
override thepublicPath
setting for this loader.
-
There is also an extract
function on the instance. You should use this if you have more than one ExtractTextPlugin.