splice() changes the original array whereas slice() doesn't but both of them returns array object. var array=[1,2,3,4,5]; console.log(array.splice(2)); This will return [3,4,5]. The original array is affected resulting in array being [1,2]. var array=[1,2,3,4,5] console.log(array.slice(2)); This will return [3,4,5]. The original array is NOT affected with resulting in array being [1,2,3,4,5].