mrded · November 25, 2014 10:29
diff --git a/get_numeric_keys.js b/get_numeric_keys.js
 var array = {
  0: 'foo',
  1: 'bar',
  baz: 'ignore'
 };

 var keys = Object.keys(array).filter(function(key) {
  return !isNaN(key); // Is numeric.
 });
	var array = {
	0: 'foo',
	1: 'bar',
	baz: 'ignore'
	};

	var keys = Object.keys(array).filter(function(key) {
	return !isNaN(key); // Is numeric.
	});