docs: function(this_, value, getter_, offset){
        this_.lastSearchIndex = -1;
        getter_ = getter(getter_ || $self);
  
        for (var index = parseInt(offset, 10) || 0, len = this_.length; index < len; index++)
          if (getter_(this_[index]) === value)
            return this_[this_.lastSearchIndex = index];
      }