code: function hasMarkOnChar(character, mark) {
    const arrChars = character.marks.toJS();
    const marksSize = arrChars.length;
    for (let i = 0; i < marksSize; i++) {
      if (arrChars[i].type === mark) {
        return true;
      }
    }
    return false;
  }
docs: Has the mark on a char
  
  @param character
  @param mark
  @returns {boolean}