Function add

clusterize.js:135–144

(where, _new_rows)

    }

    var add = function(where, _new_rows) {
      var new_rows = isArray(_new_rows)
        ? _new_rows
        : [];
      if( ! new_rows.length) return;
      rows = where == 'append'
        ? rows.concat(new_rows)
        : new_rows.concat(rows);
      self.insertToDOM(rows, cache);
    }
    self.append = function(rows) {
      add('append', rows);
    }