@loopback/docs/site/apidocs/filter.filterbuilder.where.md

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---
lang: en
title: 'API docs: filter.filterbuilder.where'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/filter
permalink: /doc/en/lb4/apidocs.filter.filterbuilder.where.html
---

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[Home](./index.md) &gt; [@loopback/filter](./filter.md) &gt; [FilterBuilder](./filter.filterbuilder.md) &gt; [where](./filter.filterbuilder.where.md)

## FilterBuilder.where() method

Declare a where clause

<b>Signature:</b>

```typescript
where(w: Where<MT>): this;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  w | [Where](./filter.where.md)<!-- -->&lt;MT&gt; | Where object |

<b>Returns:</b>

this