tsconfig.options.json

{
  "$schema": "https://json.schemastore.org/tsconfig",
  "compilerOptions": {
    // Use custom import conditions to resolve paths to the source directory.
    // Useful to prevent "Go to definition" from navigating to the `build` folder of an imported package from this monorepo.
    // Reference: Chapter 5 of https://colinhacks.com/essays/live-types-typescript-monorepo
    "customConditions": ["@jkomyno/source"],
    // Enable all strict type checking options.
    "strict": true,
    // Enables project references and informs the TypeScript program where to find referenced outputs.
    "composite": true,
    // Project references rely on the compiled declarations (.d.ts) of external projects.
    // If declarations do not exist, TypeScript will generate them on demand.
    "declaration": true,
    // Generate sourcemaps for declarations, so that language server integrations in editors like "Go to" resolve correctly.
    "declarationMap": true,
    // If the typechecker fails, avoid generating invalid or partial declarations.
    "noEmitOnError": true,
    // Avoids eager loading and analyzing all declarations, improving performance.
    "skipLibCheck": true,
    // Allow 'import x from y' when a module doesn't have a default export.
    "allowSyntheticDefaultImports": true,
    // Emit additional JavaScript to ease support for importing CommonJS modules.
    "esModuleInterop": true,
    // Ensure that each file can be safely transpiled without relying on other imports.
    "isolatedModules": true,

    "noUnusedLocals": false,
    "noUnusedParameters": false,
    "allowJs": false,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "pretty": true,
    "forceConsistentCasingInFileNames": true,
    "removeComments": true,
    "resolveJsonModule": true,
    "verbatimModuleSyntax": true,
  },
}