kepta · November 19, 2017 10:28
diff --git a/def_par_9.js b/def_par_9.js
 const isRequired = () => { throw new Error('param is required'); };

 function filterEvil(array, evil = isRequired()) {
  return array.filter(item => item !== evil);   
 }
	const isRequired = () => { throw new Error('param is required'); };

	function filterEvil(array, evil = isRequired()) {
	return array.filter(item => item !== evil);
	}