webpack.config.js - 웹팩에 확장자 알려주기

webpack.config3.js

const path = require("path");

module.exports = {
  entry: "./src/index.tsx",
  mode: "development",
  output: {
    filename: "bundle.js",
    path: path.resolve(__dirname, "dist"),
  },
  module: {
    rules: [
      {
        test: /\.css$/i,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.(png|svg|jpg|jpeg|gif)$/i,
        type: "asset/resource",
      },
      {
        test: /\.(woff|woff2|eot|ttf|otf)$/i,
        type: "asset/resource",
      },
      {
        test: /\.(csv|tsv)$/i,
        use: ["csv-loader"],
      },
      {
        test: /\.(ts|tsx)$/i,
        use: "babel-loader",
        exclude: /node_modules/,
      },
    ],
  },
  resolve: {
    extensions: [".tsx", ".ts", ".js", ".jsx"], // <- 해당 부분이다.
  },
};