Function extractList

lib/parser.js:7758–7766

(list, index)

      }

      function extractList(list, index) {
        var result = new Array(list.length), i;

        for (i = 0; i < list.length; i++) {
          result[i] = list[i][index];
        }

        return result;
      }

      function buildList(first, rest, index) {
        return [first].concat(extractList(rest, index));