voluptasmollitia/docs-exp/firestore_lite.wherefilterop.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/firestore](./firestore.md) &gt; [lite](./firestore_lite.md) &gt; [WhereFilterOp](./firestore_lite.wherefilterop.md)

## WhereFilterOp type

Filter conditions in a [where()](./firestore_.where.md) clause are specified using the strings '&amp;lt;', '&amp;lt;=', '==', '!=', '&amp;gt;=', '&amp;gt;', 'array-contains', 'in', 'array-contains-any', and 'not-in'.

<b>Signature:</b>

```typescript
export declare type WhereFilterOp = '<' | '<=' | '==' | '!=' | '>=' | '>' | 'array-contains' | 'in' | 'array-contains-any' | 'not-in';
```