Function aggregateColumns

Aggregates several values in one pass over the rows. The keys of specs name the results; a key is also the default property path.

Example

const totals = aggregateColumns(orders, {
  quantity: "sum",
  total: "sum",
  customer: "countDistinct",
  avgTotal: { aggregator: "avg", value: "total" }
});
// { quantity: 549812, total: 27481033.5, customer: 412, avgTotal: 274.81 }
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Since

1.1.94