Max Char

Instructions:

• Given a string, return the character that is most commonly used in the string.

Examples:

• maxChar("abcccccccd") === "c"
• maxChar("apple 1231111") === "1"

Repl.it:

• max-char

Code:

function maxChar(str) {
  let charMap = {};
  let max = 0;
  let maxChar = '';
  for (let char of str) {
    charMap[char] = character[char] + 1 || 1;
  }
  for (let char in charMap) {
    if (charMap[char] > max) {
      max = charMap[char];
      maxChar = char;
    }
  }
  return maxChar;
}