$and/$or/$not
Reference group: Conditional and logical expressions
What it does
Combines or negates boolean expressions.
Syntax
{$and: [expression, ...]}
Use case
Compute compound conditions.
$and/$or/$not: practical example
{ $project: { eligible: { $and: [{ $gte: ["$age", 18] }, { $eq: ["$verified", true] }] } } }💡 Explanation
Combines or negates boolean expressions.
When to use it
Compute compound conditions.
Key Takeaways
- Combines or negates boolean expressions.
- Typical use: Compute compound conditions.