tsconfig.json

{
	"extends": "./.svelte-kit/tsconfig.json",
	"compilerOptions": {
		// Projects
		"incremental": true,
		"composite": true,

		// Language and Environment
		"useDefineForClassFields": true,
		"moduleDetection": "force",

		// Modules
		"module": "NodeNext",
		"moduleResolution": "NodeNext",
		"resolvePackageJsonExports": true,
		"resolvePackageJsonImports": true,
		"resolveJsonModule": true,

		// JavaScript Support

		// Emit
		"declaration": true,
		"declarationMap": true,
		"sourceMap": true,

		// Interop Constraints
		"forceConsistentCasingInFileNames": true,
		"verbatimModuleSyntax": true,

		// Type Checking
		"strict": true,
		"noImplicitAny": true,
		"strictNullChecks": true,
		"strictFunctionTypes": true,
		"strictBindCallApply": true,
		"strictPropertyInitialization": true,
		"noImplicitThis": true,
		"useUnknownInCatchVariables": true,
		"alwaysStrict": true,
		"noUnusedLocals": true,
		"noUnusedParameters": true,
		"exactOptionalPropertyTypes": true,
		"noImplicitReturns": true,
		"noFallthroughCasesInSwitch": true,
		"noUncheckedIndexedAccess": true,
		"noImplicitOverride": true,
		"noPropertyAccessFromIndexSignature": true,
		"allowUnusedLabels": false,
		"allowUnreachableCode": false

		// Completeness
	}
	// Path aliases are handled by https://kit.svelte.dev/docs/configuration#alias
	//
	// If you want to overwrite includes/excludes, make sure to copy over the relevant
	// includes/excludes from the referenced tsconfig.json - TypeScript does not merge them in.
}