$eq/$ne/$gt/$gte/$lt/$lte
Reference group: Conditional and logical expressions
What it does
Compares expression values and returns booleans.
Syntax
Comparison expressions such as {$gt: [a, b]}
Use case
Compare two fields in a document.
$eq/$ne/$gt/$gte/$lt/$lte: practical example
{ $match: { $expr: { $gt: ["$sold", "$threshold"] } } }💡 Explanation
Compares expression values and returns booleans.
When to use it
Compare two fields in a document.
Key Takeaways
- Compares expression values and returns booleans.
- Typical use: Compare two fields in a document.