Swap two elements in an array located at different indexes

swap.js

/* Swap - Using ES6 Array Destructuring */
const swap = (arr, indx1, indx2) => [arr[indx1], arr[indx2]] = [arr[indx2], arr[indx1]];


/* Swap - Pre-ES6 Version, using a temporary variable */
const swap2 = (arr, indx1, indx2) => {
    const temp = arr[indx1];
    arr[indx1] = arr[indx2];
    arr[indx2] = temp;
}