amiralies · July 25, 2019 15:39
diff --git a/filter.js b/filter.js
 const filter = (obj, fun) =>
  Object.entries(obj).reduce(
    (prev, [key, value]) => ({
      ...prev,
      ...(fun(key, value) ? { [key]: value } : {})
    }),
    {}
  );
	const filter = (obj, fun) =>
	Object.entries(obj).reduce(
	(prev, [key, value]) => ({
	...prev,
	...(fun(key, value) ? { [key]: value } : {})
	}),
	{}
	);