module.exports = { // development or production mode: "development", entry: "./src/index.ts", output: { path: `${__dirname}/dist`, filename: "main.js" }, module: { rules: [ { test: /\.ts$/, use: "ts-loader" } ] }, resolve: { extensions: [".ts", ".js"] } }; //src/index.tsからdist/main.jsを生成するようwebpackを設定する