gabrielem · September 17, 2016 20:02
diff --git a/gistfile1.txt b/gistfile1.txt
 function flatten(arr) {
  const flat = [].concat(...arr)
  return flat.some(Array.isArray) ? flatten(flat) : flat;
 }

 /*
  Usage: 
 */
 flatten([[1,2,[3]],4])
 /*
  Result:
  [1, 2, 3, 4]
 */
	function flatten(arr) {
	const flat = [].concat(...arr)
	return flat.some(Array.isArray) ? flatten(flat) : flat;
	}

	/*
	Usage:
	*/
	flatten([[1,2,[3]],4])
	/*
	Result:
	[1, 2, 3, 4]
	*/