medium10 pts · first answer countsdatabasesmongodb

findOneAndUpdate returns the old value

This code logs the stock before the decrement, not after. Why?

const doc = await products.findOneAndUpdate(
  { _id: id },
  { $inc: { stock: -1 } }
)
console.log(doc.stock)

A.$inc only takes effect after the next read of the docB.findOneAndUpdate never changes stock valuesC.By default it returns the document before the updateD.The log line runs before the await has finished

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findOneAndUpdate returns the old value

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