Source: letterCount.js

/**
 * Return a frequency map of each letter in a string, ignores spaces.
 * @param {string} str - a string
 * @returns {Object} - the characters and their frequency
 *
 * ex: letterCount("hello world") //=> {h: 1, e: 1, l: 3, o: 2, w: 1, r: 1, d: 1}
 *
 */

function letterCount() {}

module.exports = letterCount;