As the Webpack 2 migration tutorial states, the difference between both is, that if when we want an array of loaders, we have to use use, if it’s just one loader, then we have to use loader: module: { rules: [ { test: /\.jsx$/, loader: “babel-loader”, // Do not use “use” here options: { // … Read more
This is a really complex question, but I can show how you can add additional dependencies to specific modules as if those were required from that module. This ensures that your added modules will be in the correct chunks and will also be removed if the parent module is removed from the bundle. const CommonJsRequireDependency … Read more
If you want to force ESLint to always emit warnings (that will not stop you build) instead of errors, you need to set emitWarning: true: { enforce: ‘pre’, include: paths.appSrc, test: /\.(js|jsx|mjs)$/, use: [{ loader: require.resolve(‘eslint-loader’), options: { formatter: eslintFormatter, eslintPath: require.resolve(‘eslint’), emitWarning: true, 👈 HERE }, }], }, As stated in the docs: Errors … Read more
It is not an answer to this question, but i believe my answer can help some people. This is due to the settings of chrome, for example in FF this error warnings not happens. To fix it go to Developer Tools Settings of Chrome, and uncheck: “Enable JavaScript source maps” “Enable CSS source maps” Then … Read more
Generated files with source maps won’t automatically redirect to their original files, because there’s potentially a 1-to-many relationship. If you see the message Source Map Detected, the original file should already appear on the side file tree or the file explorer via Crl + P. If you don’t know the original file name, you can … Read more
You can use dotenv package for this purpose. npm install dotenv –save After installing the package, add this in the top of your config: const webpack = require(‘webpack’); // only add this if you don’t have yet // replace accordingly ‘./.env’ with the path of your .env file require(‘dotenv’).config({ path: ‘./.env’ }); then in plugins … Read more
Firstly I would like to state the difference between the commonJS and commonJS2 CommonJS doesn’t support the use of module.exports = function() {} which is used by node.js and many other commonJS implementations. Webpack2 employs the concept of the bundling the library code and for the widespread use of it and to make it compatible … Read more
This seems to have been fixed. Below is a working setup: Versions “jest”: “~20.0.4” “webpack”: “^3.5.6” package.json “jest”: { “moduleNameMapper”: { “^@root(.*)$”: “<rootDir>/src$1”, “^@components(.*)$”: “<rootDir>/src/components$1″, } } webpack.shared.js const paths = { APP_DIR: path.resolve(__dirname, ‘..’, ‘src’), }; exports.resolveRoot = [paths.APP_DIR, ‘node_modules’]; exports.aliases = { ‘@root’: path.resolve(paths.APP_DIR, ”), ‘@components’: path.resolve(paths.APP_DIR, ‘components’), };
Version Installed: Using webpack CLI: (–version, -v Show version number [boolean]) webpack –version or: webpack -v Using npm list command: npm list webpack Results in name@version-range: <projectName>@<projectVersion> /path/to/project └── webpack@<version-range> Using yarn list command: yarn list webpack How to do it programmatically? Webpack 2 introduced Configuration Types. Instead of exporting a configuration object, you may … Read more
There are several way to approach globals: 1. Put your variables in a module. Webpack evaluates modules only once, so your instance remains global and carries changes through from module to module. So if you create something like a globals.js and export an object of all your globals then you can import ‘./globals’ and read/write … Read more