yetithefoot · September 19, 2016 14:11
diff --git a/duplicate.js b/duplicate.js
 function duplicate(){
  // write your one-line implementation here
 }

 // should prints [1,2,3,4,5,1,2,3,4,5]
 console.log(duplicate([1,2,3,4,5]));

 // should prints ['a','b','c','a','b','c']
 console.log(duplicate(['a','b','c']));
	function duplicate(){
	// write your one-line implementation here
	}

	// should prints [1,2,3,4,5,1,2,3,4,5]
	console.log(duplicate([1,2,3,4,5]));

	// should prints ['a','b','c','a','b','c']
	console.log(duplicate(['a','b','c']));