Which operator would you use to check for a value greater than a specified threshold?

To determine if a value exceeds a specified threshold, the appropriate operator is the greater than operator, denoted as $gt. This operator facilitates the evaluation of whether a given field's value is strictly greater than a defined value. When using $gt in a query, only documents where the field's current value surpasses the provided threshold will be included in the results.

For example, if you want to find documents where the "price" field is greater than 50, you would structure your query like this: {"price": {$gt: 50}}. This ensures that only documents with a price exceeding 50 are returned.

In contrast, the other operators serve different purposes: $gte checks for values greater than or equal to a threshold, making it unsuitable for cases where only a strict greater condition is desired. $lt checks for less than a specified value, while $lte looks for values less than or equal to a given threshold. Both of these are irrelevant for queries seeking to find values exceeding a threshold. Thus, $gt is the correct operator for this specific requirement.