/** * A function that takes 3 parameters to make a rotation in an array. * @example arr=[1,2,3,4,5,6,7,8,9], rotation(arr, 3, "right") returns [4,5,6,7,8,9,1,2,3] * @function * @param {Array} arr - The array to rotate. * @param {Number} n - The number of rotations. * @param {string} direction - The direction of the rotation. * @returns {Array} */ const rotation = (arr, n, direction) => { if (direction === "right") { for (let i = 0; i < n; i++) { let firstElement = arr.shift(); arr.push(firstElement); } } else { for (let i = 0; i < n; i++) { let lastElement = arr.pop(); arr.unshift(lastElement); } } return arr; }; export default rotation;