Cycle a list, emit two elements per one item.

lists.js

    var items = _.chain(this.state.docs)
      .slice(0, 10)
      .map(function(doc, idx) {
        return [
          React.createElement(ListDivider, {
            key: 'div' + idx,
            inset: false
          }),
          React.createElement(ListItem, {
            key: 'item' + idx,
            primaryText: doc.id,
            secondaryText: doc.value.rev
          })
        ];
    })
    .flatten(true)
    .value();