babel.config.json

{
  "presets": ["@babel/preset-env", "@babel/preset-react", "@babel/preset-flow", "@babel/preset-typescript"],
  "plugins": [
    "inline-react-svg",
    "@babel/plugin-transform-runtime",
    "@babel/plugin-syntax-dynamic-import",
    "@babel/plugin-transform-modules-commonjs",
    "@babel/plugin-proposal-class-properties",
    "@babel/plugin-transform-reserved-words",
    [
      "@babel/plugin-transform-typescript",
      {
        "allowNamespaces": true
      }
    ],
    ["babel-plugin-styled-components", { "ssr": true, "displayName": true, "preprocess": false }]
  ],
  "env": {
    "development": {
      "plugins": [
        "transform-es2015-modules-commonjs",
        ["babel-plugin-styled-components", { "ssr": true, "displayName": true, "preprocess": false }]
      ],
      "presets": ["@babel/preset-react", "@babel/preset-typescript"]
    },
    "test": {
      "plugins": ["transform-es2015-modules-commonjs", "@babel/plugin-proposal-class-properties"],
      "presets": ["@babel/preset-react", "@babel/preset-typescript"]
    }
  }
}