vamshi9666 · August 14, 2018 08:10
diff --git a/merging_nested_arrays_nodejs b/merging_nested_arrays_nodejs
 const input_array = [[1,2,[3]],4]

 function flatten(arr) {
  return arr.reduce(function (flat, toFlatten) {
    return flat.concat(Array.isArray(toFlatten) ? flatten(toFlatten) : toFlatten);
  }, []);
 }

 flatten(input_array)
	const input_array = [[1,2,[3]],4]

	function flatten(arr) {
	return arr.reduce(function (flat, toFlatten) {
	return flat.concat(Array.isArray(toFlatten) ? flatten(toFlatten) : toFlatten);
	}, []);
	}

	flatten(input_array)