How to configure Webpack with babel to recognize static properties of class? - reactjs

Each of my models has its own static property, but with current configurations they are undefined.
Here is my .babelrc
{
"presets": ["#babel/preset-react","#babel/typescript","#babel/env"],
"plugins": ["#babel/plugin-proposal-class-properties", "#babel/transform-runtime","#babel/plugin-transform-classes"]
}
Webpack conf
{
test: /\.(js|jsx|mjs|ts|tsx)$/,
include: paths.appSrc,
loader: require.resolve('babel-loader'),
options: {
compact: true,
},
},
P.S this is ejected configuration from create-react-app

Related

How to obfuscate classnames using Tailwindcss Reactjs and CRACO

I'm trying to obfuscate my tailwindcss class names when someone views my html. A medium article suggested doing so via webpack. Since I'm using Create-React-App, I want to add the code below to webpack via the CRACO (Create React App Configuration Override) config file. How do I add this code in craco.config.js?
The code I'd like to edit in webpack.config.js:
// webpack.config.js / loaders section
{
test: /\.css$/,
use: [
{
loader: 'style-loader'
},
{
loader: 'css-loader',
options: {
modules: true,
importLoaders: 1,
localIdentName: '[sha1:hash:hex:4]'
}
}
]
}
As per this article
My current craco config file:
// craco.config.js
module.exports = {
style: {
postcss: {
plugins: [
require('tailwindcss'),
require('autoprefixer'),
],
},
},
webpack: {
// somehow that code above fits in here...
}
}

Module parse failed: Unexpected character '#' (1:0) with Storybook 6.1.11, Webpack 5.11.0, React 17.0.1

Trying to setup a react-app with all latest versions.
Github Repo Link
Trying to run storybook with sass file imported will result in below error. Trying to run without importing the styles, storybook works.
The same code works correctly when its run as npm start run with no warnings and errors.
I have configured css modules using #dr.pogodin/babel-plugin-react-css-modules with sass, webpack 5, react 17 and with latest packages.
ERROR in ./src/assets/stylesheets/app.scss 1:0
Module parse failed: Unexpected character '#' (1:0)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
> #import "./base.scss";
| #import "./generics/font.scss";
| #import "./generics/spacing.scss";
# ./stories/index.js 5:0-44 8:2-10:4 8:58-10:3 9:4-49
# ./src/components/atoms/button/stories.js
babel.config.js
module.exports = {
presets: ["#babel/preset-env", "#babel/preset-react"],
plugins: [
[
"#dr.pogodin/babel-plugin-react-css-modules",
{
webpackHotModuleReloading: true,
autoResolveMultipleImports: true,
filetypes: {
".scss": {
syntax: "postcss-scss",
},
},
generateScopedName: "[name]__[local]___[hash:base64:5]",
},
],
],
};
webpack.config.js for css (partial code inlcuded)
{
test: /\.(css|sass|scss)$/,
exclude: /node_modules/,
use: [
isDev ? "style-loader" : MiniCssExtractPlugin.loader,
{
loader: "css-loader",
options: {
modules: {
auto: (resourcePath) =>
resourcePath.indexOf("assets/stylesheets") === -1,
localIdentName:"[name]__[local]___[hash:base64:5]",
},
sourceMap: true,
},
},
"sass-loader",
],
}
storybook/webpack.config.js file
const custom = require('../webpack.config.js');
module.exports = {
// stories: ['../src/components/**/*.stories.js'],
webpackFinal: (config) => {
return {
...config,
module: {
rules: custom.module.rules,
},
resolve: {
...config.resolve,
...custom.resolve,
}
};
},
};
I don't know what you have done with your configuration but you would define the config things inside .storybook/main.js. And for global style css is supposed to be included in preview.js file.
In short, you have to do the few things:
Remove your .storybook/config.js and add .storybook/main.js with following content:
const custom = require('../webpack.config.js');
module.exports = {
stories: [
'../src/**/stories.js', // The name should have a prefix for component name like `button.stories.js` instead of `stories.js` like you've done. As you renamed, you can remove this pattern
"../src/**/*.stories.#(js|jsx|ts|tsx)"
],
webpackFinal: (config) => {
return {
...config,
module: {
rules: custom.module.rules,
},
resolve: {
...config.resolve,
...custom.resolve,
}
};
},
};
Create the .storybook/preview.js to import your global style:
import "../src/assets/stylesheets/app.scss";
Some people have been running into problems a some scss preset when using Storybook 6.2.0 with Webpack 5. Instead of using a preset, I recommend configuring the Webpack config in main.js as mentioned above. Here's the relevant portion of a working Storybook Webpack config for Sass:
module: {
...config.module,
rules: [
...config.module.rules,
{
test: /\.(scss)$/,
use: [
{
loader: 'style-loader',
},
{
loader: 'css-loader',
},
{
loader: 'postcss-loader',
options: {
postcssOptions: {
plugins: function () {
return [require('precss'), require('autoprefixer')];
},
},
},
},
{
loader: require.resolve('sass-loader'),
options: {
implementation: require('sass'),
},
},
],
},
],
},
I've written more about getting Storybook off the ground with Webpack 5 (and modifying the Storybook Webpack config) over here.
Another reason this might happen: if you are adding new components to your app and the path defined for your sass-loader does not match anymore.
E.g. if you have this in your .storybook/main.js:
webpackFinal: async config => {
// Add SASS support
// https://storybook.js.org/docs/configurations/custom-webpack-config/#examples
config.module.rules.push({
test: /\.scss$/,
use: [
"style-loader",
{
loader: "css-loader",
options: {
modules: {
compileType: "icss",
},
},
},
"sass-loader",
],
include: path.resolve(__dirname, "../"),
})
Update or completely remove the include path.

Should I Configure Babel Through .babelrc or WebPack?

In my react project, webpack.config.js brings in proposal-class properties like so:
...
module: {
rules: [
{
test: /\.jsx?$/,
exclude: /(node_modules|bower_components)/,
use: {
loader: 'babel-loader',
query: {
presets: ['#babel/react', '#babel/preset-env'],
plugins: ['#babel/proposal-class-properties']
}
},
}
...
By including #babel/proposal-class-properties I'm able to remove the constructors from my React components, etc.
However, the documentation shows plugin-proposal-class-properties in .babelrc as follows (and doesn't mention webpack.config.js at all):
{
"plugins": ["#babel/plugin-proposal-class-properties"]
}
whereas my .babelrc does not include any plugins at all:
{
"presets": [
["#babel/env", {
"modules": false
},
"#babel/preset-env"]
]
}
Is there any effective difference between including the plugins (such as proposal-class-properties) in webpack.config.js as compared to putting them in .babelrc?
You can configure babel through .babelrc or through the babel-loader configuration in webpack. They both work exactly the same.
However, I recommend only using .babelrc for configuring babel.
That way it can also work when you run your tests, which usually don't go through webpack and will therefore not have the webpack configuration for babel.
.babelrc:
{
"presets": ["#babel/preset-env"]
"plugins": ['#babel/plugin-proposal-class-properties', {'loose': true}]
}

Unable to use the spread operator after ejecting create-react-app

I used create-react-app to create a react application.
After I run eject, I am unable to use the spread operator as follows:
//eslint-disable-next-line
const { children, ...attributes } = this.props; //Line 19
It keeps giving me this error when I run yarn start
Line 19: Parsing error: Unexpected token ..
Webpack Dev Server
I have tried adding all the presets and the transform plugin to both webpack dev server config and .babelrc but no luck
// Process JS with Babel.
{
test: /\.(js|jsx|mjs)$/,
include: paths.appSrc,
loader: require.resolve('babel-loader'),
options: {
presets:['react','es2015','env',"stage-2"],
plugins: ["transform-object-rest-spread"],
// This is a feature of `babel-loader` for webpack (not Babel itself).
// It enables caching results in ./node_modules/.cache/babel-loader/
// directory for faster rebuilds.
cacheDirectory: true,
},
},
// "postcss" loader app
And in the babel rc file as well
//.babelrc
{
"presets":["env","react","stage-2"],
"plugins": [
["transform-object-rest-spread", { "useBuiltIns": true }]
]
}
It works fine if I don't eject the script.
So the problem turned out to be eslint.
Webpack config was loading it before babel
Adding parser options fixed it.
{
test: /\.(js|jsx|mjs)$/,
enforce: 'pre',
use: [
{
options: {
formatter: eslintFormatter,
eslintPath: require.resolve('eslint'),
"extends": "airbnb",
"parserOptions":{
"ecmaFeatures": {
"experimentalObjectRestSpread": true
}
}
},
loader: require.resolve('eslint-loader'),
},
],
include: paths.appSrc,
},
Updated the #babel with this:
npm install #babel/runtime#latest did the work

How to set root directory for webpack

I am configuring webpack for react storybook and I am having issues with the import statements paths. When I normally run my app, I have a path like this:
import { constructURLName } from "src/shared/utilities/stringManipulation";
I am using the reactQL boilerplate and it is configured so that it will return the proper module based on the src folder. How can I replicate that in storybook? Storybook currently tries to look for that stringManipulation file here:
/Users/me/development/reactQL/node_modules/src/shared/utilities/stringManipulation
So it needs to go up one directory based on my layout:
node_modules
src
pages
...
shared
utilities
stringManipulation
This is what my rule looks like for js/jsx files:
{
test: /\.jsx?$/,
exclude: /node_modules/,
use: [
{
loader: "babel-loader",
query: {
babelrc: false,
presets: [
["env", { modules: false, exclude: ["transform-regenerator"] }],
"react"
],
plugins: [
"transform-object-rest-spread",
"syntax-dynamic-import",
"transform-regenerator",
"transform-class-properties",
"transform-decorators-legacy"
]
}
}
]
},
How can I properly set the src directory? Thanks!
You can use resolve.modules.
const path = require('path');
const config = {
...
resolve: {
modules: [
path.resolve(__dirname, 'node_modules'),
path.resolve(__dirname, './'),
]
}

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