reverseSlice.js

// https://www.codewars.com/kata/586efc2dcf7be0f217000619/train/javascript
const reverseSlice = s => {
  // First, split the string `s` into an array of characters, reverse the order, 
  // and join them back into a new string.
  const reversedStr = s.split("").reverse().join("");

  // Iterate over the reversed string using the `map` method.
  // On each iteration, return a substring that starts from the current index `i`
  // to the end of `reversedStr`. This effectively creates a progressively smaller
  // set of substrings, where each new element in the resulting array is a 
  // truncated version of the reversed string.
  return [...reversedStr].map((_, i) => 
    reversedStr.substring(i)
  );
};