.Collect every title in the index that contains the word "test"
[source,js]
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var allTitles = [];

// first we do a search, and specify a scroll timeout
client.search({
  index: 'myindex',
  scroll: '30s', // keep the search results "scrollable" for 30 seconds
  source: ['title'], // filter the source to only include the title field
  q: 'title:test'
}, function getMoreUntilDone(error, response) {
  // collect the title from each response
  response.hits.hits.forEach(function (hit) {
    allTitles.push(hit._source.title);
  });

  if (response.hits.total > allTitles.length) {
    // ask elasticsearch for the next set of hits from this search
    client.scroll({
      scrollId: response.scroll_id,
      scroll: '30s'
    }, getMoreUntilDone);
  } else {
    console.log('every "test" title', allTitles);
  }
});
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