---
url: "https://vueda.dev/v3/reference/api/js/use/useField/functions/isUnsetValue.md"
title: "isUnsetValue"
---

# isUnsetValue

## Overview

Determines whether a field's value is **unset** (i.e., it has not been explicitly set).

Unlike `defaultIsRequiredViolation`, this function is used for **form state tracking** to determine
whether a field has been given a meaningful value by the user.

## Signature

`isUnsetValue(value)`

### Parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| <span id="param-value">value</span> | `any` | yes | The value to evaluate. |

### Returns

`boolean`

`true` if the field is considered unset, otherwise `false`.

## Source

`client/lib/use/useField.js:231`