webpack.config.js

//const webpack = require("webpack");
const path = require("path");
const CopyPlugin = require("copy-webpack-plugin");
function uuidv4() {
  return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(c) {
    var r = Math.random() * 16 | 0, v = c == "x" ? r : (r & 0x3 | 0x8);
    return v.toString(16);
  });
}
const config = {
  entry: "./src/index.ts",
  plugins: [
    new CopyPlugin({
      patterns: [
        { from: "src/index.html", to: "",  transform(content) {
          return content
            .toString()
            .replace("RANDOM_UUID", uuidv4());
        }},
      ],
    }),
  ],
  resolve: {
    // Add `.ts` and `.tsx` as a resolvable extension.
    extensions: [".ts", ".tsx", ".js"]
  },
  module: {
    rules: [
      // all files with a `.ts` or `.tsx` extension will be handled by `ts-loader`
      { test: /\.tsx?$/, loader: "ts-loader" }
    ]
  },
  output: {
    path: path.resolve(__dirname, "dist"),
    filename: "main.js",
  },
  devtool: "source-map",
  mode: "development"
};

module.exports = config;