package.json

{
  "name": "myfirstapp",
  "version": "1.0.0",
  "description": "",
  "main": "webpack.config.js",
  "scripts": {
    "start": "webpack-dev-server --open --mode development",
    "build": "webpack -p",
    "test": "jest"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "react": "^16.5.2",
    "react-dom": "^16.5.2"
  },
  "devDependencies": {
    "@types/enzyme": "^3.1.15",
    "@types/jest": "^23.3.9",
    "babel-core": "^6.26.3",
    "babel-loader": "^7.1.5",
    "babel-preset-env": "^1.7.0",
    "babel-preset-react": "^6.24.1",
    "clean-webpack-plugin": "^0.1.19",
    "css-loader": "^1.0.1",
    "enzyme": "^3.7.0",
    "enzyme-adapter-react-16": "^1.7.0",
    "html-webpack-plugin": "^3.2.0",
    "jest": "^23.6.0",
    "prop-types": "^15.6.2",
    "react-test-renderer": "^16.6.3",
    "style-loader": "^0.23.1",
    "webpack": "^4.22.0",
    "webpack-cli": "^3.1.2",
    "webpack-dev-server": "^3.1.10"
  },
  "jest": {
    "setupFiles": [
      "<rootDir>/test-shim.js",
      "<rootDir>/test-setup.js"
    ],
    "moduleFileExtensions": [
      "js"
    ],
    "moduleNameMapper": {
      "\\.(css|less)$": "identity-obj-proxy"
    },
    "testMatch": [
      "**/__tests__/*.(ts|js)"
    ]
  }
}