kepler.gl/src/layers/babel.config.js

kepler.gl is a webgl based application to visualize large scale location data in the browser

// SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project

const KeplerPackage = require('./package');

const PRESETS = ['@babel/preset-env', '@babel/preset-react', '@babel/preset-typescript'];
const PLUGINS = [
  ['@babel/plugin-transform-typescript', {isTSX: true, allowDeclareFields: true}],
  '@babel/plugin-transform-modules-commonjs',
  '@babel/plugin-transform-class-properties',
  '@babel/plugin-transform-optional-chaining',
  '@babel/plugin-transform-logical-assignment-operators',
  '@babel/plugin-transform-nullish-coalescing-operator',
  '@babel/plugin-transform-export-namespace-from',
  [
    '@babel/transform-runtime',
    {
      regenerator: true
    }
  ],
  [
    'search-and-replace',
    {
      rules: [
        {
          search: '__PACKAGE_VERSION__',
          replace: KeplerPackage.version
        }
      ]
    }
  ]
];
const ENV = {
  test: {
    plugins: ['istanbul']
  },
  debug: {
    sourceMaps: 'inline',
    retainLines: true
  }
};

module.exports = function babel(api) {
  api.cache(true);

  return {
    presets: PRESETS,
    plugins: PLUGINS,
    env: ENV
  };
};