Target specific nested elements with arrayFilters

javascript

db.orders.updateOne(
  { _id: 1 },
  { $set: { "items.$[line].discounted": true } },
  { arrayFilters: [{ "line.qty": { $gte: 5 } }] }
)

Explanation

`arrayFilters` are powerful for targeted nested updates without rewriting the whole array.

Learn the surrounding workflow

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