tsconfig.json

{
  "$schema": "https://json.schemastore.org/tsconfig",
  "display": "Jess, a very strict TS" /* schema extends @wcandillon's strict AF react-native config */,
  "compilerOptions": {
    "target": "esnext",
    "lib": [
      "dom",
      "es2019"
    ],
    "allowJs": false,
    "skipLibCheck": true,
    "noEmit": true,
    "allowSyntheticDefaultImports": true,
    "resolveJsonModule": true,
    "esModuleInterop": true,
    "moduleResolution": "node",
    "jsx": "react-native",
    "tsx": "react-native",
    "strict": true,
    "noUnusedLocals": true /* Report errors on unused locals. */,
    "noUnusedParameters": true /* Report errors on unused parameters. */,
    "noImplicitReturns": true /* Report error when not all code paths in function return a value. */,
    "noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,
    "noUncheckedIndexedAccess": true, /* Include 'undefined' in index signature results */
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
    "strictNullChecks": true, /* Enable strict null checks. */
    "strictFunctionTypes": true, /* Enable strict checking of function types. */
    "strictBindCallApply": true, /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
    "strictPropertyInitialization": true, /* Enable strict checking of property initialization in classes. */
    "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
    "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
    "importsNotUsedAsValues": "error",
  },
  "exclude": ["node_modules", "babel.config.js", "metro.config.js", "jest.config.js"]
}