# \$1lt
<a name="lt"></a>

The `$lt` operator in Amazon DocumentDB is used to match values that are less than the specified value. This operator is useful for filtering and querying data based on numerical comparisons.

**Parameters**
+ `field`: The field name to check.
+ `value`: The value to compare against.

## Example (MongoDB Shell)
<a name="lt-examples"></a>

The following example demonstrates how to use the `$lt` operator to retrieve documents where the `Inventory.OnHand` value is less than 50.

**Create sample documents**

```
db.example.insertMany([
  { "_id": 1, "Inventory": { "OnHand": 25, "Sold": 60 }, "Colors": ["Red", "Blue"] },
  { "_id": 2, "Inventory": { "OnHand": 75, "Sold": 40 }, "Colors": ["Red", "White"] },
  { "_id": 3, "Inventory": { "OnHand": 10, "Sold": 85 }, "Colors": ["Red", "Green"] }
]);
```

**Query example**

```
db.example.find({ "Inventory.OnHand": { $lt: 50 } })
```

**Output**

```
{ "_id" : 1, "Inventory" : { "OnHand" : 25, "Sold" : 60 }, "Colors" : [ "Red", "Blue" ] }
{ "_id" : 3, "Inventory" : { "OnHand" : 10, "Sold" : 85 }, "Colors" : [ "Red", "Green" ] }
```

## Code examples
<a name="lt-code"></a>

To view a code example for using the `$lt` command, choose the tab for the language that you want to use:

------
#### [ Node.js ]

```
const { MongoClient } = require('mongodb');

async function example() {
  const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false');
  const db = client.db('test');
  const collection = db.collection('example');

  const result = await collection.find({ "Inventory.OnHand": { $lt: 50 } }).toArray();
  console.log(result);

  await client.close();
}

example();
```

------
#### [ Python ]

```
from pymongo import MongoClient

def example():
    client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
    db = client['test']
    collection = db['example']

    result = list(collection.find({ "Inventory.OnHand": { "$lt": 50 } }))
    print(result)

    client.close()

example()
```

------