babel.config.js

module.exports = {
  presets: [`@babel/env`, `@babel/preset-typescript`],
  plugins: [
    `@babel/proposal-class-properties`,
    `@babel/proposal-object-rest-spread`,
    `transform-es2015-modules-commonjs`,
    `@babel/plugin-proposal-optional-chaining`,
    `@babel/plugin-proposal-nullish-coalescing-operator`,
    [
      `@babel/plugin-transform-runtime`,
      {
        regenerator: true,
      },
    ],
  ],
};