code: function getValue(fromObject, fromKey) {
    var regDot = /\./g
      , regFinishArray = /.+(\[\])/g
      , keys
      , key
      , result
      , lastValue
      ;
  
    keys = fromKey.split(regDot);
    key = keys.splice(0, 1);
  
    result = _getValue(fromObject, key[0], keys);
  
    return handleArrayOfUndefined_(result);
  }
docs: Make the get of a value with the key in the passed object
  @param fromObject
  @param fromKey
  @constructor
  @returns {*}