tsconfig.json

{
  "$schema": "https://json.schemastore.org/tsconfig",
  "display": "Node 16 + Strictest",
  "compilerOptions": {
    "lib": ["ESNext", "DOM"],
    "target": "ES6",
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "noImplicitAny": true,
    "forceConsistentCasingInFileNames": true,
    "alwaysStrict": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": true,
    "strictBindCallApply": true,
    "allowUnusedLabels": false,
    "allowUnreachableCode": false,
    "exactOptionalPropertyTypes": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "checkJs": true,
    "outDir": "lib",
    "sourceMap": true,
    "moduleResolution": "NodeNext",
    "module": "NodeNext",
    "declaration": true
  },
  "include": ["src", "test/**/*.ts", "scripts"]
}