tsconfig.json

{
  "compilerOptions": {
    "allowJs": true,
    "allowSyntheticDefaultImports": true,
    "allowUnreachableCode": false,
    "downlevelIteration": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "jsx": "react",
    "lib": ["ES2015", "ES2016", "ES2017", "ES2018", "ES2019", "ES2020", "DOM", "DOM.Iterable"],
    "module": "esnext",
    "moduleResolution": "Node",
    "noEmit": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": false,
    "baseUrl": "./src",
    "resolveJsonModule": true,
    "paths": {
      "@box/*": ["./*"]
    },
    "plugins": [
      {
        "transform": "typescript-plugin-styled-components",
        "type": "config"
      }
    ],
    "pretty": true,
    "skipLibCheck": true,
    "sourceMap": true,
    "strict": true,
    "strictNullChecks": true,
    "suppressImplicitAnyIndexErrors": true,
    "target": "es2016",
    "types": ["react", "jest", "node", "webpack-env"]
  }
}