mingo/esm/operators/accumulator/avg.js

MongoDB query language for in-memory objects

import { isNumber } from "../../util";
import { $push } from "./push";
const $avg = (coll, expr, options) => {
  const data = $push(coll, expr, options).filter(isNumber);
  if (data.length === 0) return null;
  let sum = 0;
  for (let i = 0; i < data.length; i++) sum += data[i];
  return sum / data.length;
};
export {
  $avg
};