ArrayflattenOn this pageflatten_.flatten(array) # Ⓢ [Ⓣ][1] Ⓝ Flattens array a single level deep. Since 0.1.0 Arguments array (Array): The array to flatten. Returns (Array): Returns the new flattened array. Example _.flatten([1, [2, [3, [4]], 5]]);// => [1, 2, [3, [4]], 5]