How to implement scss in react - reactjs

I am trying to implement SCSS in my project. I have ran the npm command to install the loader "npm install sass-loader node-sass --save-dev". I have created a scss file. but the problem is it is not working. i tried multiple configurations to make it runable but no luck. below are my webpack configuration. please advice,
rules: [{
test: /\.js$/,
exclude: /(node_modules|bower_components)/,
loader: 'babel-loader',
options: {
cacheDirectory: true
}
}]

Did you configure your loaders correctly? Cant at least see any css/scss loaders in your provided code? https://github.com/webpack-contrib/sass-loader
UPDATE::
Add ExtractTextPlugin into your config. What this does is, it moves all the require("style.css")s in entry chunks into a separate single CSS file. So your styles are no longer inlined into the JS bundle, but separate in a CSS bundle file (styles.css) https://github.com/webpack-contrib/extract-text-webpack-plugin
Include the following into your webpack.config file.
// webpack.config.js
import ExtractTextPlugin from 'extract-text-webpack-plugin'
{
test: /\.scss$/,
loader: ExtractTextPlugin.extract({
fallbackLoader: 'style',
loader: [
'css',
'postcss',
{
loader: 'sass',
query: {
sourceMap: false,
}
}
],
})
}
and import your .scss files ::
import 'scss/myfile.scss'

Related

import css from node modules react-boilerplate

I am trying to import a css file from node_modules.
My webpack config:
{
// Preprocess 3rd party .css files located in node_modules
test: /\.css$/,
include: /node_modules/,
use: [
'style-loader',
{
loader: 'css-loader',
options: {
modules: true,
},
},
],
}
Furthermore, I woud like to import it in custom header component, like this:
import 'react-s-alert/dist/s-alert-default.css';
But it doesn't seem to work. Does anybody know what the problem is here?

webpack css loader exclude css files

Currently, I have multiple css files under some react components. Those css files are required conditionally. However, css loader and extract text plugin include all the css files which is not required in a js file. Is there any way to exclude files by regex using test config or other way?
test: /\.css$/,
lets say I have css files
bear.css
cat.css
styles.css
colors.css
... multiptle different css files
I edit the regex correctly but still it include all css no matter what which i tested by leaving one comment on css file which should not be included on bundle.css
This is how I require css file
const css = require(`./styles/${config}`)
I will answer myself. Webpack's include exclude used to determine the file need to be transpile or not, which is nothing to do with excluding files from your bundle. For example, you add regex to exclude, it will still be in your bundle. However, it will not be processed or transpiled(depends on your loader you use).
Therefore, you should use something likeignore loader to remove from your bundle.
According to webpack documentation you can include style-loader and css-loader in your webpack.config.js file:
config = {
entry: "./app/Main.js",
output: {
publicPath: "/",
path: path.resolve(__dirname, "app"),
filename: "bundled.js"
},
mode: "development",
module: {
rules: [
{
test: /\.js$/,
exclude: /(node_modules)/,
use: {
loader: "babel-loader",
options: {
presets: ["#babel/preset-react", ["#babel/preset-env", { targets: { node: "12" } }]]
}
}
},
{
test: /\.css$/i,
use: ['style-loader', 'css-loader'],
},
]
}
}
After that you could add css directly in your Main.js file
import Example from 'Example';
import './css/bear.css';
import './css/cat.css';
...

webpack is not recognizing .jsx file extension

In our project, I'm trying to refactor all our components to have a .jsxfile extension rather than .js. My webpack.config.babel file now looks like this:
import fs from "fs"
const babelrc = JSON.parse(fs.readFileSync("./.babelrc"))
export default {
module: {
loaders: [
{
test: /\.js$/,
loader: "babel-loader",
query: babelrc,
exclude: /(node_modules|bower_components)/,
},
{
test: /\.jsx$/,
loader: "babel-loader",
query: babelrc,
exclude: /(node_modules|bower_components)/,
},
{
test: /\.json$/,
loader: "json-loader",
},
{
test: /\.css$/,
loader: 'style-loader!css-loader',
},
],
},
}
However when I try to run import Main from './components/Main/Main';
in my client.js file, it shows me
Module build failed: Error: ENOENT: no such file or directory, open '/foo/src/components/Main/Main.js'
# multi babel-polyfill webpack-dev-server/client?/ webpack/hot/dev-server ./src/client.js
I'm new to babel and webpack. What other places to I need to register the jsx file extension?
Take a look at the documentation for resolve.extensions:
https://webpack.js.org/configuration/resolve/#resolveextensions
You can add the following to your Webpack config to also automatically resolve files with the .jsx extension by adding the following to your config:
resolve: {
extensions: ['.js', '.jsx']
}
Btw, you can also optimize your loader config by removing the separate .jsx loader and make the first loader test for /\.jsx?$/

Font Awesome, Webpack with url/file/-loader

This question has been answered in multiple questions before, but I'm afraid none of them work for me.
I'm using font-awesome from node_modules
all I wanna do is this
import 'font-awesome/css/font-awesome.css'
Here's my Webpack Code
webpackConfig.module.rules.push(
{
test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
loader: "url-loader?limit=10000&mimetype=application/font-woff"
},
{
test: /\.(ttf|eot|svg)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
loader: "file-loader"
}
)
The error, Please note I am getting the same error for all the different fonts in font-awesome
ERROR in ./node_modules/font-awesome/fonts/fontawesome-webfont.woff2?v=4.7.0
Module parse failed: /Users/valoster/Projects/app-ui/node_modules/url-loader/index.js?limit=10000&mimetype=application/font-woff!/Users/valoster/Projects/app-ui/node_modules/font-awesome/fonts/fontawesome-webfont.woff2?v=4.7.0 Unexpected token (1:15)
You may need an appropriate loader to handle this file type.
| export default = __webpack_public_path__ + "af7ae505a9eed503f8b8e6982036873e.woff2";
# ./node_modules/css-loader?{"sourceMap":true,"minimize":true}!./node_modules/postcss-loader/lib?{"plugins":[{"version":"5.2.17","plugins":[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"postcssPlugin":"cssnano","postcssVersion":"5.2.17"}]}!./node_modules/font-awesome/css/font-awesome.css 6:244-297
# ./node_modules/font-awesome/css/font-awesome.css
You are trying to import a .css file, so you need to use css-loader.
Command Line:
yarn add css-loader --dev
In your webpack.config.js:
module.exports = {
module: {
rules: [
{
test: /\.css$/,
use: ["style-loader", "css-loader"],
},
],
},
},

Can't compile ES7 features with Webpack and React

I'm trying to compile my React app with support for ES7 decorators as I'm using the autobind-decorator but webpack says there is an "Unexpected token" with the router, which is the entry file for the app. I've tried various versions of babel related npms, using the the "state-0" and "transform-runtime" and they all result in the same error. Anyone's help would be very much appreciated :)
main.js
webpack.config
package.json
The reason for this error is incorrect loader config inside your webpack.config.js file. You need to supply the presets under the query field in the loader config:
loaders: [
{
test: /\.jsx?$/,
loader: 'babel',
query: {
presets: ['es2015', 'react', 'stage-1']
}
}
]
According to the README of babel-loader, your should use query field in your config, like so:
module: {
loaders: [
{
test: /\.jsx?$/,
include: // ....
loader: 'babel',
query: {
presets: [/*presets list*/],
plugins: [/*plugins list*/]
}
}
]
}

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