--description--

Given an array with two values, return an array with the values swapped.

For example, given ["A", "B"] return ["B", "A"].

--hints--

arraySwap(["A", "B"]) should return ["B", "A"].

assert.deepEqual(arraySwap(["A", "B"]), ["B", "A"]);

arraySwap([25, 20]) should return [20, 25].

assert.deepEqual(arraySwap([25, 20]), [20, 25]);

arraySwap([true, false]) should return [false, true].

assert.deepEqual(arraySwap([true, false]), [false, true]);

arraySwap(["1", 1]) should return [1, "1"].

assert.deepEqual(arraySwap(["1", 1]), [1, "1"]);

--seed--

--seed-contents--

function arraySwap(arr) {

  return arr;
}

--solutions--

function arraySwap(arr) {

  return [arr[1], arr[0]];
}