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{% comment %}
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# 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 
```

## Methods

|  Method | Modifiers | Description |
|  --- | --- | --- |
|  [isEqual(other)](./firestore_lite.fieldvalue.md#fieldvalueisequal) |  | Compares <code>FieldValue</code>s for equality. |

## FieldValue.isEqual()

Compares `FieldValue`<!-- -->s for equality.

<b>Signature:</b>

```typescript
abstract isEqual(other: FieldValue): boolean;
```

#### Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  other | [FieldValue](./firestore_lite.fieldvalue.md#fieldvalue_class) |  |

<b>Returns:</b>

boolean