tsconfig.base.json

{
	"compilerOptions": {
		/*
		 * Basic Options
		 */

		// Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017',
		// 'ES2018' or 'ESNEXT'.
		"target": "es2015",

		// Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015',
		// or 'ESNext'.
		"module": "commonjs",

		// List of library files to be included in the compilation.
		"lib": ["es2016", "es2017.object", "es2017.string", "esnext.asynciterable"],

		// Redirect output structure to the directory.
		"outDir": "./build",

		// List of folders to include type definitions from. See @types, –typeRoots and –types for
		// more details.
		"typeRoots": ["./typings/", "./node_modules/@types/"],

		// Generates corresponding '.d.ts' file.
		"declaration": true,

		// Generates a sourcemap for each corresponding '.d.ts' file.
		"declarationMap": true,

		// Generates corresponding '.map' file.
		"sourceMap": true,

		/*
		 * Strict Type-Checking Options
		 */

		// Enable all strict type-checking options.
		"strict": true,

		// Ensure non-undefined class properties are initialized in the constructor.
		"strictPropertyInitialization": false,

		/*
		 * Additional Checks
		 */

		// Report errors on unused locals.
		"noUnusedLocals": true,

		// Report errors on unused parameters.
		"noUnusedParameters": true,

		// Raise error on expressions and declarations with an implied any type.
		"noImplicitAny": false,

		// Report error when not all code paths in function return a value.
		"noImplicitReturns": true,

		// Report errors for fallthrough cases in switch statement.
		"noFallthroughCasesInSwitch": true,

		/*
		 * Module Resolution Options
		 */

		// Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6).
		"moduleResolution": "node",

		// Base directory to resolve non-absolute module names.
		"baseUrl": "./",

		// Enables emit interoperability between CommonJS and ES Modules via creation of namespace
		// objects for all imports. Implies 'allowSyntheticDefaultImports'.
		"esModuleInterop": true,

		/*
		 * Experimental Options
		 */

		// Enables experimental support for ES7 decorators.
		"experimentalDecorators": true,

		// Enables experimental support for emitting type metadata for decorators.
		"emitDecoratorMetadata": true
	},

	// Files and directories to be included in compilation
	"include": ["**/*.ts"],

	// Files and directories to be excluded from compilation
	"exclude": ["node_modules", "**/*.(e2e-)?spec.ts"]
}