const input = ["s", "t", "a", "r", "m", "i", "n", "d"];
const result = [];

function customReverse(accumulator, letter) {
 // Task 1: Implement this function such that it reverses the array when passing it to Array.prototype.reduce.
}

function assignResult(array) {
 // Task 2: Above defined "const result" should hold the value of array.
}

assignResult(input.reduce(customReverse, []));
const testPassed = input.reverse().join("") === result.join("");
// Bonus question: Why can't we check (result === input.reverse()) to find out whether the test has passed?