.babelrc

{
  "presets": [
    "@babel/preset-react",
    "@babel/preset-typescript",
    [
      "@babel/preset-env",
      {
        "corejs": {
          "version": "3",
          "proposals": true
        },
        "useBuiltIns": "usage"
      }
    ]
  ],
  "plugins": [
    "styled-components",
    [
      "@babel/plugin-proposal-decorators",
      {
        "legacy": true
      }
    ],
    "@babel/plugin-transform-destructuring",
    "@babel/plugin-transform-regenerator",
    "transform-class-properties"
  ],
  "env": {
    "production": {
      "plugins": [
        [
          "styled-components",
          {
            "displayName": false
          }
        ]
      ],
      "ignore": [
        "**/*.test.ts"
      ]
    },
    "development": {
      "ignore": [
        "**/*.test.ts"
      ]
    }
  }
}