veritatisdoloremque/docs-exp/firestore_.fieldvalue.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/firestore](./firestore.md) &gt; [/](./firestore_.md) &gt; [FieldValue](./firestore_.fieldvalue.md)

## FieldValue class

Sentinel values that can be used when writing document fields with `set()` or `update()`<!-- -->.

<b>Signature:</b>

```typescript
export declare abstract class FieldValue 
```

## Constructors

|  Constructor | Modifiers | Description |
|  --- | --- | --- |
|  [(constructor)(\_methodName)](./firestore_.fieldvalue._constructor_.md) |  | Constructs a new instance of the <code>FieldValue</code> class |

## Methods

|  Method | Modifiers | Description |
|  --- | --- | --- |
|  [isEqual(other)](./firestore_.fieldvalue.isequal.md) |  |  |