Using React with webpack.
Ran through some articles, but most of them suggest calling individual scss file for each component. But I would like to precompile all css into single file for entire application like we do using grunt/gulp.
You can use the webpack-text-extract-pluggin that is in charge of compiling all css files and bundling them in an index.css file.
Also note that you'll need to install sass-loader too in order to compile the scss.
In the webpack config:
var ExtractTextPlugin = require('extract-text-webpack-plugin');
config = {
...,
plugins: [
...,
new ExtractTextPlugin('index.css')
],
module: {
loaders: [
...
{
test: /\.css$/,
loader: ExtractTextPlugin.extract('style','css')
},
{
test: /\.scss$/,
loader: ExtractTextPlugin.extract('style', 'css!sass')
}
]
}
}
In index.html:
<link rel="stylesheet" type="text/css" href="/index.css">
In any Javascript file that gets through webpack:
require("./styles/my-custom-file.scss");
You could take a look at the extract-text-webpack-plugin.
After requiring this in your webpack.config.js:
var ExtractTextPlugin = require("extract-text-webpack-plugin");
You can rewrite your sass loader to this:
module: {
loaders: [
{test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader'},
{test: /\.scss$/, loader: ExtractTextPlugin.extract('style', 'css', 'sass')}
]
},
plugins: [
new ExtractTextPlugin('bundle.css')
]
For more options and usage check the link above.
Related
I am developing a web application in angular 5.Now I have included webpack 4 in my application.But There is a problem all styles written in styles.css file are not reflecting in the build created from webpack.
Need solution for this problem.
Below is my webpack.common.js file which is used for loading diffrent types of files present in my application build always succeed but the styles.css code is not reflection on my site when it gets loaded in browser.But code written in components .scss file reflects properly i have searched a lot but did not find any solution for this issue why is is happening.
import styles from './styles.css';
var webpack = require('webpack');
var HtmlWebpackPlugin = require('html-webpack-plugin');
var ExtractTextPlugin = require('extract-text-webpack-plugin');
var helpers = require('./helpers');
module.exports = {
entry: {
'polyfill': './src/polyfills.ts',
'vendor': './src/vendor.ts',
'app': './src/main.ts'
},
resolve: {
extensions: ['.ts', '.js']
},
module: {
rules: [
{
test: /\.ts$/,
loader: ['awesome-typescript-loader','angular2-template-loader','angular-router-loader'
],
exclude:[/node_modules/]
},
{
test: /\.html$/,
loader: 'html-loader'
},
{
test: /\.(png|jpe?g|gif|svg|woff|woff2|ttf|eot|ico)$/,
loader: 'file-loader?name=assets/images/[name].[hash].[ext]'
},
{
test: /\.(css|scss)$/,
include: helpers.root('src', 'app'),
loaders: ['css-loader']
},
{
test: /\.js$/,
include: helpers.root('src', 'app'),
loader: 'babel-loader',
exclude:[/node_modules/],
query:{
presets:['es2015']
}
}
]
},
plugins: [
// Workaround for angular/angular#11580
new webpack.ContextReplacementPlugin(
// The (\\|\/) piece accounts for path separators in *nix and Windows
/angular(\\|\/)core(\\|\/)#angular/,
helpers.root('./src'), // location of your src
{} // a map of your routes
),
new ExtractTextPlugin("src/styles.css"),
new HtmlWebpackPlugin({
template: 'src/index.html'
})
]
};
You should import your css stylesheet using #import from your main css/scss stylesheet.
Do NOT import a css file as a javascript module from the webpack config file. This has no sense.
I am trying to include the bootstrap css file in my app using Webpack (v4.5) using the instructions found on the offical website (https://getbootstrap.com/docs/4.0/getting-started/webpack/) but am getting the following error when running webpack.
ERROR in ./node_modules/bootstrap/dist/css/bootstrap.min.css Module parse failed: Unexpected token (6:3) You may need an appropriate loader to handle this file type.
I have tried all I can think of to get this working but am afraid I am probably missing something really obvious.
I import the css into my code using: import 'bootstrap/dist/css/bootstrap.min.css';
And my webpack config looks like:
module: {
rules: [
{
test: /\.css$/,
use: ['style-loader', 'css-loader']
},
{
test: /js$/,
exclude: /(node_modules)/,
loader: 'babel-loader',
query: { presets: ['react-app'] },
},
],
}
I have both css-loader and style-loader installed and am using the same webpack config that bootstrap displays in their docs.
Can anyone see what I am doing wrong?
Do this first
npm install --save-dev css-loader
and then this
npm install --save-dev style-loader
After installing change your configuration like this
{
test: /\.css$/,
exclude: /node_modules/,
use: ExtractTextPlugin.extract({
fallback: "style-loader",
use: [
{
loader: 'css-loader'
},
{
loader: 'style-loader'
}
]
})
}
I'm trying to use blueprintjs and when i'm importing its css. And i think i made something wrong in my webpack config so I see this error
there is my webpack config
const ExtractTextPlugin = require('extract-text-webpack-plugin');
var webpack = require("webpack");
var path = require("path");
module.exports={
entry: './src/index.js',
output:{
path: __dirname + "/public",
filename:'bundle.js',
publicPath: "/public/"
},
devServer: {
inline: true,
contentBase: './public',
port: 3000
},
module:{
rules: [
{
test: /\.js$/,
exclude: /(node_modules)/,
loader: "babel-loader",
query: {
presets: ['es2015', 'react', 'stage-0'],
}
},
{
test: /\.s(a|c)ss$/,
loader: ExtractTextPlugin.extract({loader: ['css-loader', 'sass-loader', 'style-loader']})
},
{
test: /\.css$/,
use: [
{
loader: 'style-loader',
},
{
loader: 'css-loader',
},
],
},
{
test: /\.(|gif||svg|woff|woff2|eot|ttf)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
loader: 'file-loader', options: {name: '[name].[ext]'}
}, {
test: /\.(png|jpg|)$/,
loader: 'url-loader?limit=200000'
},
]
},
plugins: [
new ExtractTextPlugin("styles.css"),
]
}
i'm using "webpack": "^2.7.0","#blueprintjs/core": "^1.34.1" and a lot of loaders
i tried to import my css like this
require('!css-loader!./index.css');
and just like this
import styles from './index.css'
the result is the same
after extra couple hours of work i got this error
at this point i'm not sure what's wrong with my webpack and how to fix it at all
any suggestions are welcome
You can compare your webpack configuration with the one in the Blueprint monorepo: https://github.com/palantir/blueprint/tree/develop/packages/webpack-build-scripts
Try applying loaders in the same order as in the base config: ['style-loader', 'css-loader', 'sass-loader']
Try using the full path to blueprint.css inside the NPM package. The webpack error in the screenshot clearly shows the css-loader trying to load esm/index.js, a JS file, so of course it fails.
Try: #import "~#blueprintjs/core/lib/css/blueprint.css";
I am trying to use sass-loader to convert SCSS files to css(Required to have physical file). Styles are getting applied but unable to see generated .css files .
//webpack.config.js
var ExtractTextPlugin = require("extract-text-webpack-plugin");
module.exports = {
entry: './src/index.js',
output: {
path: __dirname + '/public',
filename: 'bundle.js'
},
devServer: {
contentBase: __dirname + '/public'
},
module: {
loaders: [
{test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader'},
{test: /\.scss$/, loader: ExtractTextPlugin.extract('css-loader!sass-loader')}
]
},
plugins: [
new ExtractTextPlugin("style.css")
]
}
Full source code is available at github repo
I've seen the source code. I'm sure it's because of you're still using webpack version 1 syntax but what you installed was webpack v2. Webpack2 has a different syntax than the previous version.
Using webpack v2 your webpack.config.js will look like this:
module: {
rules: [ // from 'loaders' to 'rules'
{
test: /\.js$/,
loader: 'babel-loader',
exclude: /node_modules/,
},
{
test: /\.sass$/,
exclude: /node_modules/,
loader: ExtractTextPlugin.extract({
fallbackLoader: 'style-loader',
loader: ['style-loader','sass-loader']
})
}
]
},
plugins: [
new ExtractTextPlugin('bundle.css') // what the output file (css) is going to be
]
Hope this helps.
My Webpack config contains the following loaders.
module: {
loaders: [
{ test: /\.js$/, loader: "babel", exclude: /node_modules/ },
{ test: /\.sass$/, loaders: ["style-loader", "css-loader", "sass-loader"], exclude: /node_modules/ }
]
},
Then, I wished to pull out the CSS to a separate file and I tried using the extract text webpack plugin, alternating my config like this.
var ExtractTextPlugin = require("extract-text-webpack-plugin");
module: {
loaders: [
{ test: /\.js$/, loader: "babel", exclude: /node_modules/ },
// { test: /\.sass$/, loaders: ["style-loader", "css-loader", "sass-loader"], exclude: /node_modules/ }
{
test: /\.sass$/,
loader: ExtractTextPlugin.extract(
{
loaders: ["css-loader", "sass-loader"],
fallbackLoader: "style-loader"
}
),
exclude: /node_modules/
}
]
},
plugins: [new ExtractTextPlugin("global.css")],...
However, it fails with. Probably due me not specifying the loaders correctly. How can I specify multiple loaders (one for SASS and one for CSS)?
Module not found: Error: Cannot resolve module '[object Object]' in C:\Source\Poc\TestProj
# ./index.js 7:14-38
I've checked the file index.js but I can't see anything wrong there. It's literally empty export, as shown below. And the reference to 7:14-38 says nothing to me. There aren't that many lines in the file, even...
import CssGlobal from "./global.sass";
//document.write("Banana!");
export default {}
This syntax for ExtractTextPlugin.extract() only works in webpack2 and above, apparently (an object as argument). Check this issue.
In order to make it work with webpack1, the syntax is:
ExtractTextPlugin.extract([notExtractLoader], loader, [options])`
notExtractLoader (optional) the loader(s) that should be used when the css is not extracted (i.e. in an additional chunk when allChunks:
false)
loader the loader(s) that should be used for converting the resource to a css exporting module.
Source: https://github.com/webpack/extract-text-webpack-plugin/blob/webpack-1/README.md
So, a working config file would be:
var ExtractTextPlugin = require("extract-text-webpack-plugin");
module.exports = {
/* ... */
module : {
loaders: [
{ test: /\.js$/, loader: "babel", exclude: /node_modules/ },
{
test: /\.sass$/,
exclude: /node_modules/,
loader: ExtractTextPlugin.extract("style-loader", "css-loader!sass-loader")
/* using ExtractTextPlugin.extract(["css","sass"]) works too */
}
]
},
plugins: [
new ExtractTextPlugin("styles.css")
]
}
This will genereate a styles.css file.
Loaders are transformations that are applied on a resource file of your app. They are functions (running in node.js) that take the source of a resource file as the parameter and return the new source.
For example, you can use loaders to tell webpack to load CoffeeScript or JSX.
Nicely Explained here
http://ui-codeman.blogspot.in/2017/02/webpack.html?view=sidebar