I am trying to build some Vue.js components where I would like to use the spread operator to map some states from Vuex in my Phoenix 1.3 app, but I'm getting some javascript compile errors:
26 | },
27 | computed: {
> 28 | ...mapState('module/game', ['selectedWord']),
| ^
29 | }
30 | }
31 |
This is the .vue file in question:
<template>
<div id="guess-panel">
</div>
</template>
<script>
import { mapState } from 'vuex';
export default {
props: [],
data() {
return {
guess: ''
}
},
computed: {
...mapState('module/game', ['selectedWord']),
}
}
</script>
<style lang="sass">
</style>
Here is my package.json file
{
"repository": {},
"license": "MIT",
"scripts": {
"deploy": "brunch build --production",
"watch": "brunch watch --stdin"
},
"dependencies": {
"autoprefixer": "^8.5.0",
"bootstrap": "^4.1.1",
"copycat-brunch": "^1.1.0",
"es6-promise": "^4.2.4",
"jquery": "^3.3.1",
"lodash": "^4.17.10",
"phoenix": "file:../deps/phoenix",
"phoenix_html": "file:../deps/phoenix_html",
"popper.js": "^1.14.3",
"postcss-brunch": "^2.1.0",
"sass-brunch": "^2.10.4",
"typescript-brunch": "^2.3.0",
"vue": "^2.5.16",
"vuex": "^3.0.1"
},
"devDependencies": {
"babel-brunch": "6.1.1",
"babel-plugin-transform-object-rest-spread": "^6.26.0",
"babel-plugin-transform-runtime": "^6.23.0",
"brunch": "2.10.9",
"clean-css-brunch": "2.10.0",
"uglify-js-brunch": "2.10.0",
"vue-brunch": "^2.0.3"
}
}
And here is my brunch-config.js file
exports.config = {
files: {
javascripts: {
joinTo: "js/app.js"
},
stylesheets: {
joinTo: "css/app.css"
},
templates: {
joinTo: "js/app.js"
}
},
conventions: {
assets: /^(static)/
},
paths: {
watched: ["static", "css", "js", "vendor", "components"],
public: "../priv/static"
},
plugins: {
babel: {
ignore: [/vendor/],
plugins: ['transform-object-rest-spread']
},
brunchTypescript: {
removeComments: true
},
sass: {
options: {
includePaths: ["node_modules/bootstrap/scss"], // Tell sass-brunch where to look for files to #import
precision: 8 // Minimum precision required by bootstrap-sass
}
},
vue: {
extractCSS: true,
out: '../priv/static/css/components.css'
},
postcss: {
processors: [
require('autoprefixer')(['last 8 versions'])
]
},
copycat:{
"js" : ["vendor/fontawesome"],
verbose : true, //shows each file that is copied to the destination directory
onlyChanged: true //only copy a file if it's modified time has changed (only effective when using brunch watch)
}
},
modules: {
autoRequire: {
"js/app.js": ["js/app"]
}
},
npm: {
enabled: true,
globals: {
$: 'jquery', // Bootstrap's JavaScript requires '$' in global scope
jQuery: 'jquery', // Bootstrap's JavaScript requires 'jQuery' in global scope
Popper: 'popper.js', // Bootstrap's JavaScript requires 'Popper' in global scope
bootstrap: 'bootstrap', // Require Bootstrap's JavaScript globally
_: 'lodash'
}
}
};
To the best of my knowledge this should work. What am I missing?
You're using ES6 stage-2 syntax.
First you need to install the package
npm install --save-dev babel-preset-stage-2
and update your .babelrc
{
"presets": ["stage-2"]
}
You may check it here
Installing 'babel-preset-stage-2' will also install 'babel-preset-stage-3' which is the package that actually supports the spread operator. Additionally you need to install 'babel-preset-env' like so:
npm install babel-preset-env --save-dev
Finally, you edit file .babelrc like so:
{
"presets": ["env", "stage-3"]
}
Not sure what's going on, when I do a prod build ("cross-env NODE_ENV=production API_V=production npm run build") I get this error from from react-player:
ERROR in ./node_modules/react-player/lib/ReactPlayer.js Module build
failed: ReferenceError: Unknown plugin
"transform-es3-member-expression-literals" specified in
"C:\work\website\node_modules\react-player\package.json.env.production"
at 0, attempted to resolve relative to
"C:\work\website\node_modules\react-player"
I'm already excluding node_modules from babel:
rules: [
{
test: /\.js$/, // Transform all .js files required somewhere with Babel
exclude: /node_modules\/(?!(react-redux-toastr)\/).*/,
use: {
loader: 'babel-loader',
options: options.babelQuery,
},
},
As per request,
webpack.base.babel.js:
/**
* COMMON WEBPACK CONFIGURATION
*/
const path = require('path');
const webpack = require('webpack');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
module.exports = options => ({
mode: options.mode,
entry: options.entry,
output: Object.assign(
{
// Compile into js/build.js
path: path.resolve(process.cwd(), 'build'),
publicPath: '/',
},
options.output
), // Merge with env dependent settings
optimization: options.optimization,
node: {
fs: 'empty',
net: 'empty',
},
module: {
rules: [
{
test: /\.js$/, // Transform all .js files required somewhere with Babel
exclude: /node_modules\/(?!(react-redux-toastr)\/).*/,
use: {
loader: 'babel-loader',
options: options.babelQuery,
},
},
{
test: /\.(scss|css)$/,
use: [
{
loader:
options.mode === 'development'
? 'style-loader'
: MiniCssExtractPlugin.loader,
},
{
loader: 'css-loader',
options: {
sourceMap: process.env.NODE_ENV === 'development',
},
},
{
loader: 'postcss-loader',
options: {
sourceMap: process.env.NODE_ENV === 'development',
},
},
{
loader: 'sass-loader',
options: {
sourceMap: process.env.NODE_ENV === 'development',
},
},
],
},
{
test: /\.(eot|svg|ttf|woff|woff2|otf)$/,
exclude: /images/,
use: 'file-loader',
},
{
test: /\.(jpg|png|gif)$/,
use: [
{
loader: 'file-loader',
},
{
loader: 'image-webpack-loader',
options: {
mozjpeg: {
progressive: true,
},
optipng: {
optimizationLevel: 7,
},
gifsicle: {
interlaced: false,
},
pngquant: {
quality: '65-90',
speed: 4,
},
},
},
],
},
{
test: /\.svg$/,
include: /sprite/,
use: 'svg-sprite-loader',
},
{
test: /\.svg$/,
use: 'url-loader',
exclude: /sprite/,
},
{
test: /\.html$/,
use: 'html-loader',
},
{
test: /\.(mp4|webm)$/,
use: {
loader: 'url-loader',
options: {
limit: 10000,
},
},
},
],
},
plugins: options.plugins.concat([
new webpack.ProvidePlugin({
// make fetch available
fetch: 'exports-loader?self.fetch!whatwg-fetch',
}),
// Always expose NODE_ENV to webpack, in order to use `process.env.NODE_ENV`
// inside your code for any environment checks; UglifyJS will automatically
// drop any unreachable code.
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: JSON.stringify(process.env.NODE_ENV),
API_V: JSON.stringify(process.env.API_V),
CONTENT_PREVIEW: JSON.stringify(process.env.CONTENT_PREVIEW),
},
}),
]),
resolve: {
modules: ['app', 'node_modules'],
extensions: ['.js', '.jsx', '.react.js'],
mainFields: ['browser', 'main', 'jsnext:main'],
},
devtool: options.devtool,
target: 'web', // Make web variables accessible to webpack, e.g. window
performance: options.performance || {},
});
webpack.projd.babel.js:
// Important modules this config uses
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const WebpackPwaManifest = require('webpack-pwa-manifest');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const { HashedModuleIdsPlugin } = require('webpack');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
module.exports = require('./webpack.base.babel')({
mode: 'production',
// In production, we skip all hot-reloading stuff
entry: [path.join(process.cwd(), 'app/app.js')],
// Utilize long-term caching by adding content hashes (not compilation hashes) to compiled assets
output: {
filename: '[name].[chunkhash].js',
chunkFilename: '[name].[chunkhash].chunk.js',
},
optimization: {
minimize: true,
nodeEnv: 'production',
sideEffects: true,
concatenateModules: true,
splitChunks: {
cacheGroups: {
styles: {
name: 'styles',
test: /\.(scss|css)$/,
chunks: 'all',
enforce: true,
},
},
},
runtimeChunk: true,
},
plugins: [
// Minify and optimize the index.html
new HtmlWebpackPlugin({
template: 'app/index.html',
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
},
inject: true,
}),
new WebpackPwaManifest({
name: 'LEDA',
short_name: 'LEDA',
description: '',
background_color: '#ffffff',
theme_color: '#00bae4',
icons: [
{
src: path.resolve('app/images/favicon.png'),
sizes: [72, 96, 120, 128, 144, 152, 167, 180, 192],
},
],
}),
new HashedModuleIdsPlugin({
hashFunction: 'sha256',
hashDigest: 'hex',
hashDigestLength: 20,
}),
new MiniCssExtractPlugin({
filename: '[name].[contenthash].css',
}),
new UglifyJsPlugin({
parallel: true,
uglifyOptions: {
ecma: 6,
},
cache: path.join(__dirname, 'webpack-cache/uglify-cache'),
}),
],
performance: {
assetFilter: assetFilename =>
!/(\.map$)|(^(main\.|favicon\.))/.test(assetFilename),
},
});
webpack.dev.babel.js:
/**
* DEVELOPMENT WEBPACK CONFIGURATION
*/
const path = require('path');
const fs = require('fs');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CircularDependencyPlugin = require('circular-dependency-plugin');
const logger = require('../../server/logger');
const cheerio = require('cheerio');
const pkg = require(path.resolve(process.cwd(), 'package.json'));
const dllPlugin = pkg.dllPlugin;
const plugins = [
new webpack.ContextReplacementPlugin(
/\.\/locale$/,
'empty-module',
false,
/js$/
),
new webpack.HotModuleReplacementPlugin(), // Tell webpack we want hot reloading
new webpack.ContextReplacementPlugin(
/\.\/locale$/,
'empty-module',
false,
/js$/
),
new HtmlWebpackPlugin({
inject: true, // Inject all files that are generated by webpack, e.g. bundle.js
templateContent: templateContent(), // eslint-disable-line no-use-before-define
}),
new CircularDependencyPlugin({
exclude: /a\.js|node_modules|components\/Routes/, // exclude node_modules
failOnError: false, // show a warning when there is a circular dependency
}),
];
module.exports = require('./webpack.base.babel')({
mode: 'development',
// Add hot reloading in development
entry: [
'eventsource-polyfill', // Necessary for hot reloading with IE
'webpack-hot-middleware/client?reload=true',
path.join(process.cwd(), 'internals/dev-preamble.js'),
path.join(process.cwd(), 'app/app.js'), // Start with js/app.js
],
// Don't use hashes in dev mode for better performance
output: {
filename: '[name].js',
chunkFilename: '[name].chunk.js',
},
optimization: {
minimize: false,
},
// Add development plugins
plugins: dependencyHandlers().concat(plugins), // eslint-disable-line no-use-before-define
// Tell babel that we want to hot-reload
babelQuery: {
// require.resolve solves the issue of relative presets when dealing with
// locally linked packages. This is an issue with babel and webpack.
// See https://github.com/babel/babel-loader/issues/149 and
// https://github.com/webpack/webpack/issues/1866
presets: ['babel-preset-react-hmre'].map(require.resolve),
},
// Emit a source map for easier debugging
devtool: 'inline-source-map',
performance: {
hints: false,
},
});
/**
* Select which plugins to use to optimize the bundle's handling of
* third party dependencies.
*
* If there is a dllPlugin key on the project's package.json, the
* Webpack DLL Plugin will be used.
*
*/
function dependencyHandlers() {
// Don't do anything during the DLL Build step
if (process.env.BUILDING_DLL) {
return [];
}
// Don't do anything if package.json does not have a dllPlugin property
// Code splitting now included by default in Webpack 4
if (!dllPlugin) {
return [];
}
const dllPath = path.resolve(
process.cwd(),
dllPlugin.path || 'node_modules/react-boilerplate-dlls'
);
/**
* If DLLs aren't explicitly defined, we assume all production dependencies listed in package.json
* Reminder: You need to exclude any server side dependencies by listing them in dllConfig.exclude
*/
if (!dllPlugin.dlls) {
const manifestPath = path.resolve(dllPath, 'reactBoilerplateDeps.json');
if (!fs.existsSync(manifestPath)) {
logger.error(
'The DLL manifest is missing. Please run `npm run build:dll`'
);
process.exit(0);
}
return [
new webpack.DllReferencePlugin({
context: process.cwd(),
manifest: require(manifestPath), // eslint-disable-line global-require
}),
];
}
// If DLLs are explicitly defined, we automatically create a DLLReferencePlugin for each of them.
const dllManifests = Object.keys(dllPlugin.dlls).map(name =>
path.join(dllPath, `/${name}.json`)
);
return dllManifests.map(manifestPath => {
if (!fs.existsSync(path)) {
if (!fs.existsSync(manifestPath)) {
logger.error(
`The following Webpack DLL manifest is missing: ${path.basename(
manifestPath
)}`
);
logger.error(`Expected to find it in ${dllPath}`);
logger.error('Please run: npm run build:dll');
process.exit(0);
}
}
return new webpack.DllReferencePlugin({
context: process.cwd(),
manifest: require(manifestPath), // eslint-disable-line global-require
});
});
}
/**
* We dynamically generate the HTML content in development so that the different
* DLL Javascript files are loaded in script tags and available to our application.
*/
function templateContent() {
const html = fs
.readFileSync(path.resolve(process.cwd(), 'app/index.html'))
.toString();
if (!dllPlugin) {
return html;
}
const doc = cheerio(html);
const body = doc.find('body');
const dllNames = !dllPlugin.dlls
? ['reactBoilerplateDeps']
: Object.keys(dllPlugin.dlls);
dllNames.forEach(dllName =>
body.append(`<script data-dll='true' src='/${dllName}.dll.js'></script>`)
);
return doc.toString();
}
Finally webpack.dll.babel.js:
/**
* WEBPACK DLL GENERATOR
*
* This profile is used to cache webpack's module
* contexts for external library and framework type
* dependencies which will usually not change often enough
* to warrant building them from scratch every time we use
* the webpack process.
*/
const { join } = require('path');
const defaults = require('lodash/defaultsDeep');
const webpack = require('webpack');
const pkg = require(join(process.cwd(), 'package.json'));
const dllPlugin = require('../config').dllPlugin;
if (!pkg.dllPlugin) {
process.exit(0);
}
const dllConfig = defaults(pkg.dllPlugin, dllPlugin.defaults);
const outputPath = join(process.cwd(), dllConfig.path);
module.exports = require('./webpack.base.babel')({
mode: 'development',
context: process.cwd(),
entry: dllConfig.dlls ? dllConfig.dlls : dllPlugin.entry(pkg),
optimization: {
minimize: false,
},
devtool: 'eval',
output: {
filename: '[name].dll.js',
path: outputPath,
library: '[name]',
},
plugins: [
new webpack.DllPlugin({
name: '[name]',
path: join(outputPath, '[name].json'),
}),
],
performance: {
hints: false,
},
});
package.json:
{
"name": "react-boilerplate",
"version": "3.4.0",
"description": "A highly scalable, offline-first foundation with the best DX and a focus on performance and best practices",
"repository": {
"type": "git",
"url": "git://github.com/react-boilerplate/react-boilerplate.git"
},
"engines": {
"npm": ">=3",
"node": ">=5"
},
"author": "Max Stoiber",
"license": "MIT",
"scripts": {
"analyze:clean": "rimraf stats.json",
"preanalyze": "npm run analyze:clean",
"analyze": "node ./internals/scripts/analyze.js",
"checkversion": "node ./internals/scripts/checkversion.js",
"preinstall": "npm run checkversion",
"postinstall": "npm run build:dll",
"prebuild": "npm run build:clean",
"build": "webpack --config internals/webpack/webpack.prod.babel.js --color --progress",
"build:prod": "cross-env NODE_ENV=production API_V=production npm run build",
"build:staging": "cross-env NODE_ENV=production API_V=staging npm run build",
"build:clean": "npm run test:clean",
"build:dll": "node ./internals/scripts/dependencies.js",
"start": "cross-env NODE_ENV=development node server",
"start:preview": "cross-env NODE_ENV=development CONTENT_PREVIEW=true node server",
"start:tunnel": "cross-env NODE_ENV=development ENABLE_TUNNEL=true node server",
"start:production": "npm run test && npm run build:prod && npm run start:prod",
"start:staging": "npm run test && npm run build:staging && npm run start:prod",
"start:prod": "cross-env NODE_ENV=production node server",
"presetup": "npm i chalk shelljs",
"setup": "node ./internals/scripts/setup.js",
"postsetup": "npm run build:dll",
"clean:all": "npm run analyze:clean && npm run test:clean && npm run build:clean",
"lint": "npm run lint:js",
"lint:eslint": "eslint",
"lint:js": "npm run lint:eslint -- . ",
"lint:fix": "npm run lint:eslint -- . --fix",
"lint:staged": "lint-staged",
"pretest:coverage": "npm run test:clean",
"test:clean": "rimraf ./coverage",
"test": "cross-env NODE_ENV=test jest",
"test:update": "cross-env NODE_ENV=test jest --updateSnapshot",
"test:coverage": "cross-env NODE_ENV=test jest --coverage",
"test:watch": "cross-env NODE_ENV=test jest --watch",
"coveralls": "cat ./coverage/lcov.info | coveralls",
"flow": "flow; test $? -eq 0 -o $? -eq 2"
},
"lint-staged": {
"*.js": "lint:eslint",
"*.{js,scss}": [
"prettier --write",
"git add"
]
},
"pre-commit": [
"lint:staged",
"test"
],
"dllPlugin": {
"path": "node_modules/react-boilerplate-dlls",
"exclude": [
"chalk",
"compression",
"cross-env",
"express",
"ip",
"minimist"
],
"include": [
"core-js",
"lodash",
"eventsource-polyfill"
]
},
"jest": {
"collectCoverageFrom": [
"app/**/*.{js,jsx}",
"!app/**/*.test.{js,jsx}",
"!app/containers/**/*.{js,jsx}",
"!app/*/RbGenerated*/*.{js,jsx}",
"!app/app.js",
"!app/routes.js"
],
"moduleDirectories": [
"node_modules",
"app"
],
"moduleNameMapper": {
".*\\.(css|less|styl|scss|sass)$": "<rootDir>/internals/mocks/cssModule.js",
".*\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/internals/mocks/image.js"
},
"setupTestFrameworkScriptFile": "<rootDir>/internals/testing/test-bundler.js",
"testRegex": "tests/.*\\.test\\.js$",
"setupFiles": [
"<rootDir>/internals/testing/test-setup.js"
]
},
"dependencies": {
"axios": "^0.15.3",
"babel-polyfill": "6.20.0",
"bluebird": "^3.5.0",
"chalk": "1.1.3",
"classnames": "^2.2.5",
"compression": "1.6.2",
"cross-env": "3.1.3",
"express": "4.14.0",
"fontfaceobserver": "2.0.7",
"history": "4.6.3",
"immutable": "3.8.2",
"ip": "1.1.4",
"leaflet": "^1.0.3",
"lodash": "4.17.2",
"marked": "^0.3.6",
"mime-types": "^2.1.16",
"minimist": "1.2.0",
"moment": "^2.18.1",
"moment-timezone": "^0.5.13",
"numeral": "^2.0.6",
"pace": "0.0.4",
"pace-js": "^1.0.2",
"prerender-node": "^2.7.2",
"qs": "^6.4.0",
"react": "15.4.1",
"react-dom": "15.4.1",
"react-foundation-components": "^0.12.0",
"react-helmet": "5.0.0",
"react-hot-loader": "^4.0.0",
"react-loadable": "^5.3.1",
"react-modal": "^1.7.7",
"react-player": "^1.5.0",
"react-progressbar.js": "^0.2.0",
"react-redux": "4.4.6",
"react-redux-toastr": "^7.0.0",
"react-router": "4.2.0",
"react-router-dom": "^4.2.2",
"react-router-redux": "5.0.0-alpha.6",
"react-router-scroll-memory": "^1.0.1",
"redux": "3.6.0",
"redux-immutable": "3.0.8",
"redux-saga": "0.16.0",
"redux-segment": "^1.6.2",
"request-promise": "^4.2.1",
"shortid": "^2.2.8",
"sitemap": "^1.13.0",
"store": "^2.0.4",
"tls": "0.0.1",
"tunnel-agent": "^0.6.0"
},
"devDependencies": {
"axios-mock-adapter": "^1.8.1",
"babel-cli": "6.18.0",
"babel-core": "6.21.0",
"babel-eslint": "7.1.1",
"babel-loader": "^7.1.4",
"babel-plugin-add-module-exports": "^0.2.1",
"babel-plugin-dynamic-import-node": "1.0.0",
"babel-plugin-react-transform": "2.0.2",
"babel-plugin-root-import": "^5.1.0",
"babel-plugin-transform-es2015-modules-commonjs": "6.18.0",
"babel-plugin-transform-react-constant-elements": "6.9.1",
"babel-plugin-transform-react-inline-elements": "6.8.0",
"babel-plugin-transform-react-jsx-source": "^6.22.0",
"babel-plugin-transform-react-remove-prop-types": "0.2.11",
"babel-preset-env": "^1.6.1",
"babel-preset-latest": "6.16.0",
"babel-preset-react": "6.16.0",
"babel-preset-react-hmre": "1.1.1",
"babel-preset-stage-0": "6.16.0",
"cheerio": "0.22.0",
"circular-dependency-plugin": "^5.0.1",
"coveralls": "2.11.15",
"css-loader": "^0.28.11",
"empty-module": "0.0.2",
"enzyme": "2.6.0",
"eslint": "^3.19.0",
"eslint-config-airbnb": "^14.1.0",
"eslint-config-airbnb-base": "^11.1.3",
"eslint-config-prettier": "^2.6.0",
"eslint-import-resolver-webpack": "0.8.3",
"eslint-plugin-flowtype": "^2.30.4",
"eslint-plugin-import": "2.2.0",
"eslint-plugin-jsx-a11y": "^4.0.0",
"eslint-plugin-prettier": "^2.3.1",
"eslint-plugin-react": "7.5.1",
"eslint-plugin-redux-saga": "0.1.5",
"eventsource-polyfill": "0.9.6",
"exports-loader": "^0.7.0",
"file-loader": "^1.1.11",
"flow-bin": "^0.57.3",
"html-loader": "^0.5.5",
"html-webpack-plugin": "^3.2.0",
"husky": "^0.14.3",
"image-webpack-loader": "^4.2.0",
"imports-loader": "^0.8.0",
"jest": "^22.4.3",
"jest-cli": "^22.4.3",
"lint-staged": "^3.2.1",
"mini-css-extract-plugin": "^0.4.0",
"ngrok": "2.2.4",
"node-plop": "0.5.4",
"node-sass": "^4.5.3",
"null-loader": "0.1.1",
"plop": "1.7.3",
"postcss-loader": "^2.1.3",
"pre-commit": "1.1.3",
"prettier": "^1.7.4",
"react-addons-test-utils": "15.4.1",
"redux-logger": "^2.10.2",
"rimraf": "2.5.4",
"sass-loader": "^6.0.7",
"shelljs": "0.7.5",
"sinon": "2.0.0-pre",
"style-loader": "^0.20.3",
"svg-sprite-loader": "^3.7.3",
"uglifyjs-webpack-plugin": "^1.2.4",
"url-loader": "^1.0.1",
"webpack": "^4.5.0",
"webpack-cli": "^2.0.14",
"webpack-dev-middleware": "^3.1.2",
"webpack-hot-middleware": "^2.22.0",
"webpack-pwa-manifest": "^3.6.2"
}
}
You need to install the plugin that is being asked:
npm install --save-dev babel-plugin-transform-es3-member-expression-literals
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"production"',
},
}),
you can try it.
Turns out the issue was to do with macos/windows back slashing and forward slashing differences, switching the exclude pattern to this:
exclude: /(node_modules|bower_components!react-redux-toastr)/
Fixed it.