tsconfig.json

{
  "compilerOptions": {
    "alwaysStrict": true,
    "baseUrl": ".",
    "diagnostics": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "lib": ["esnext"],
    "module": "commonjs",
    "moduleResolution": "node",
    "noEmit": true,
    "noErrorTruncation": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noStrictGenericChecks": false,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "paths": {
      "_src/*": ["src/*"]
    },
    "resolveJsonModule": true,
    "rootDir": "src",
    "skipLibCheck": true,
    "strict": true,
    "strictBindCallApply": true,
    "strictFunctionTypes": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": true,
    "suppressExcessPropertyErrors": false,
    "suppressImplicitAnyIndexErrors": false,
    "target": "esnext"
  },
  "include": ["src/**/*.ts"]
}