alt-library/src/stringReverse.js

ALT library - algorithm and data structures

/**
   * Given a string as an input, return a string with the reversed
   * order of characters
   * Example
   * ===========================
   * stringReverse('hello') => 'olleh'
   * ===========================
   * @param {string} inputString
   * @return {string}
   */
var stringReverse = function (inputString) {
  if (typeof inputString !== "string") {
    throw new TypeError(
      "stringReverse() expected a string, but got " +
          Object.prototype.toString.call(inputString) +
          " instead"
    );
  }

  // turn inputString into and array using String.prototype.split()
  // then call Array.prototype.reverse() method
  // and join the array back using Array.prototype.join() into a string and return the reversed string
  return inputString
    .split("")
    .reverse()
    .join("");
};

export default stringReverse;