babel.config.js

/*
 * Copyright (c) 2021, salesforce.com, inc.
 * All rights reserved.
 * SPDX-License-Identifier: BSD-3-Clause
 * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/BSD-3-Clause
 */
/* eslint-disable @typescript-eslint/no-var-requires */
const jest = require('./babel.config.jest');
const pkg = require('./package.json');

module.exports = api => {
  const isTest = api.env('test');
  if (isTest) {
    return jest;
  }

  return {
    plugins: ['@babel/plugin-proposal-class-properties'],
    presets: [
      [
        '@babel/preset-env',
        {
          useBuiltIns: 'usage',
          corejs: 3,
          modules: false,
          targets: pkg.browserslist.production,
        },
      ],
      '@babel/typescript',
      '@babel/preset-react',
    ],
  };
};