code: function substrAtNthOccurence(string, start, delimiter) {
    const _delimiter = getValueWithDefault(delimiter, '.');
    const _start = getValueWithDefault(start, 1);
    const tokens = string.split(_delimiter).slice(_start);
    return tokens.join(_delimiter);
  }
docs: Takes a string like "links.equipment.id",2,"." and returns "id"