hoc-element-affix/babel.config.js

const babelConfig = {
  presets: [
    [
      '@babel/preset-env',
      {
        targets: {
          chrome: '58',
          ie: '11'
        }
      }
    ]
  ],
  plugins: [
    [
      '@babel/plugin-transform-runtime',
      {
        corejs: false,
        helpers: true,
        regenerator: true,
        useESModules: false
      }
    ],
    '@babel/plugin-syntax-dynamic-import',
    '@babel/plugin-syntax-import-meta',
    ['@babel/plugin-proposal-class-properties', { loose: false }],
    ['@babel/plugin-proposal-private-methods', { loose: false }],
    '@babel/plugin-proposal-json-strings',
    [
      '@babel/plugin-proposal-decorators',
      {
        legacy: true
      }
    ],
    '@babel/plugin-proposal-function-sent',
    '@babel/plugin-proposal-export-default-from',
    '@babel/plugin-proposal-export-namespace-from',
    '@babel/plugin-proposal-numeric-separator',
    '@babel/plugin-proposal-throw-expressions',
    '@babel/plugin-transform-modules-commonjs'
  ]
}

module.exports = babelConfig