solutions/2810-faulty-keyboard.js

/**
 * 2810. Faulty Keyboard
 * https://leetcode.com/problems/faulty-keyboard/
 * Difficulty: Easy
 *
 * Your laptop keyboard is faulty, and whenever you type a character 'i' on it, it reverses the
 * string that you have written. Typing other characters works as expected.
 *
 * You are given a 0-indexed string s, and you type each character of s using your faulty keyboard.
 *
 * Return the final string that will be present on your laptop screen.
 */

/**
 * @param {string} s
 * @return {string}
 */
var finalString = function(s) {
  const result = [];

  for (const char of s) {
    if (char === 'i') {
      result.reverse();
    } else {
      result.push(char);
    }
  }

  return result.join('');
};