veritatisdoloremque/docs-exp/database.query.md

Monorepo for the Firebase JavaScript SDK

<!-- Do not edit this file. It is automatically generated by API Documenter. -->

[Home](./index.md) &gt; [@firebase/database](./database.md) &gt; [Query](./database.query.md)

## Query interface


<b>Signature:</b>

```typescript
export interface Query 
```

## Properties

|  Property | Type | Description |
|  --- | --- | --- |
|  [ref](./database.query.ref.md) | [Reference](./database.reference.md) |  |

## Methods

|  Method | Description |
|  --- | --- |
|  [endAt(value, key)](./database.query.endat.md) |  |
|  [equalTo(value, key)](./database.query.equalto.md) |  |
|  [get()](./database.query.get.md) |  |
|  [isEqual(other)](./database.query.isequal.md) |  |
|  [limitToFirst(limit)](./database.query.limittofirst.md) |  |
|  [limitToLast(limit)](./database.query.limittolast.md) |  |
|  [off(eventType, callback, context)](./database.query.off.md) |  |
|  [on(eventType, callback, cancelCallbackOrContext, context)](./database.query.on.md) |  |
|  [once(eventType, successCallback, failureCallbackOrContext, context)](./database.query.once.md) |  |
|  [orderByChild(path)](./database.query.orderbychild.md) |  |
|  [orderByKey()](./database.query.orderbykey.md) |  |
|  [orderByPriority()](./database.query.orderbypriority.md) |  |
|  [orderByValue()](./database.query.orderbyvalue.md) |  |
|  [startAt(value, key)](./database.query.startat.md) |  |
|  [toJSON()](./database.query.tojson.md) |  |
|  [toString()](./database.query.tostring.md) |  |