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Created a function rotation to made the rotation of an array #53 and #52 #82

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Merged
akshitagupta15june merged 1 commit into from
Oct 15, 2020
Merged

Created a function rotation to made the rotation of an array #53 and #52 #82

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26 changes: 26 additions & 0 deletions Array/Rotation.js
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Original file line number Diff line number Diff line change
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/**
* 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;