Get Query Statistics

// Define an output param for getting the query stats
let stats;

const employees = await session
    .query({ collection: "Employees" })
    .whereEquals("FirstName", "Anne")
     // Get query stats:
     // * Call 'statistics', pass a callback function
     // * Output param 'stats' will be filled with the stats when query returns 
    .statistics(s => stats = s)
    .all();

const numberOfResults = stats.value.totalResults; // Get results count
const queryDuration = stats.value.durationInMs;   // Get query duration
const indexNameUsed = stats.value.indexName;      // Get index name used in query
// ...