tsconfig.json

{
	"compilerOptions": {
		"target": "es2018",
		"module": "commonjs",
		"outDir": "dist/",
		"strictNullChecks": true,
		"strictBindCallApply": true,
		"lib": ["es6", "es2016", "es2017", "es2018", "esnext", "dom", "dom.iterable"]
	}
}