tsconfig.json

{
	"compilerOptions": {
		"target": "es5" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */,
		"module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
		"declaration": true /* Generates corresponding '.d.ts' file. */,
		"sourceMap": true, /* Generates corresponding '.map' file. */
		"outDir": "./dist" /* Redirect output structure to the directory. */,
		"strict": true /* Enable all strict type-checking options. */,
		"noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
		"strictNullChecks": true /* Enable strict null checks. */,
		"strictPropertyInitialization": true /* Enable strict checking of property initialization in classes. */,
		"noImplicitThis": true /* Raise error on 'this' expressions with an implied 'any' type. */,
		"alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,
		"noUnusedLocals": true /* Report errors on unused locals. */,
		"noImplicitReturns": true /* Report error when not all code paths in function return a value. */,
		"noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,
		"esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
	},
	"exclude": [
		"node_modules",
		"dist"
	]
}