pile/babel.config.js at master · yansenfe/pile · GitHub

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module.exports = function config(api) {
  api.cache(false);
  return {
    env: {
      development: {
        presets: [
          ['@babel/preset-env', {
            modules: false,
            useBuiltIns: 'entry',
            debug: true,
          }],
          '@babel/preset-react',
        ],
        plugins: ['@babel/plugin-syntax-dynamic-import', '@babel/plugin-transform-runtime', '@babel/proposal-class-properties'],
      },
      test: {
        presets: [['@babel/preset-env'], '@babel/preset-react'],
        plugins: [
          '@babel/plugin-syntax-dynamic-import',
          '@babel/plugin-transform-runtime',
        ],
      },
      production: {
        presets: [
          ['@babel/preset-env', {
            modules: false,
            targets: {
              browsers: [
                'last 2 versions',
                'safari >= 7',
                'not ie < 9', // React doesn't support IE8 anyway
              ],
            },
            useBuiltIns: 'entry',
          }],
          '@babel/preset-react',
        ],
        plugins: ['@babel/plugin-syntax-dynamic-import', '@babel/plugin-transform-runtime', '@babel/proposal-class-properties'],
      },
    },
  };
};