Oct 20, 2022 · Oct 15, 2022 · Oct 15, 2022 · Oct 17, 2022 · Oct 17, 2022 · Oct 18, 2022
diff --git a/Data-Structures/Array/Reverse.js b/Data-Structures/Array/Reverse.js
 /** https://www.geeksforgeeks.org/write-a-program-to-Reverse-an-array-or-string/
 * This function will accept an array and
 * Reverse its elements and returns the inverted array
 * @param {Array} arr array with elements of any data type
 * @returns {Array} array with inverted elements
 */

 const Reverse = (arr) => {
  // limit specifies the amount of Reverse actions
  for (let i = 0, j = arr.length - 1; i < arr.length / 2; i++, j--) {
    const temp = arr[i]
    arr[i] = arr[j]
    arr[j] = temp
  }
  return arr
 }
 export { Reverse }
diff --git a/Data-Structures/Array/test/Reverse.test.js b/Data-Structures/Array/test/Reverse.test.js
 import { Reverse } from '../Reverse.js'
 import each from 'jest-each'

 describe('reverse elements in an array', () => {
  each`
  array | expected
  ${[]} | ${[]}
  ${[1]} | ${[1]}
  ${[1, 2, 3, 4]} | ${[4, 3, 2, 1]}
  `.test('returns $expected when given $array', ({ array, expected }) => {
      expect(Reverse(array)).toEqual(expected)
    })
 })
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,17 @@
		/** https://www.geeksforgeeks.org/write-a-program-to-Reverse-an-array-or-string/
		* This function will accept an array and
		* Reverse its elements and returns the inverted array
		* @param {Array} arr array with elements of any data type
		* @returns {Array} array with inverted elements
		*/

		const Reverse = (arr) => {
		// limit specifies the amount of Reverse actions
		for (let i = 0, j = arr.length - 1; i < arr.length / 2; i++, j--) {
		const temp = arr[i]
		arr[i] = arr[j]
		arr[j] = temp
		}
		return arr
		}
		export { Reverse }
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,13 @@
		import { Reverse } from '../Reverse.js'
		import each from 'jest-each'

		describe('reverse elements in an array', () => {
		each`
		array \| expected
		${[]} \| ${[]}
		${[1]} \| ${[1]}
		${[1, 2, 3, 4]} \| ${[4, 3, 2, 1]}
		`.test('returns $expected when given $array', ({ array, expected }) => {
		expect(Reverse(array)).toEqual(expected)
		})
		})