$unset
Reference group: Pipeline stages
What it does
Removes fields from pipeline documents.
Syntax
{$unset: "field"} or {$unset: ["a", "b"]}
Use case
Strip internal fields.
$unset: practical example
{ $unset: ["internalNotes", "secretToken"] }💡 Explanation
Removes fields from pipeline documents.
When to use it
Strip internal fields.
Key Takeaways
- Removes fields from pipeline documents.
- Typical use: Strip internal fields.