$objectToArray
Reference group: Object and set expressions
What it does
Converts top-level object fields into {k,v} entries.
Syntax
{$objectToArray: objectExpr}
Use case
Inspect dynamic fields.
$objectToArray: practical example
{ $project: { fields: { $objectToArray: "$metrics" } } }💡 Explanation
Converts top-level object fields into
{k,v} entries.
When to use it
Inspect dynamic fields.Key Takeaways
- Converts top-level object fields into
{k,v}entries. - Typical use: Inspect dynamic fields.