Shuffle an array

Write a function suffleArray(arr), which takes an array arr as an argument. This function should shuffle the elements of the array like a deck of cards or in other words, randomly change their positions.

Instructions

• If the input array is empty then return an empty array
• You should shuffle the array in place, do not create a new array

Example test cases

shuffleArray([1, 2, 3, 4, 5]); // Output: [2, 5, 1, 4, 3]
shuffleArray(['apple', 'banana', 'orange', 'mango', 'kiwi']); // Output: ['mango', 'kiwi', 'orange', 'banana', 'apple']
shuffleArray([5, 10, 15, 20, 25, 30, 35]); // Output: [20, 5, 25, 15, 10, 30, 35]