---
title: Feature Flags
image: /images/user-guide/table-views/table.png
---

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  <img src="/images/user-guide/table-views/table.png" alt="Header" />
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Feature flags are used to hide experimental features. 對 Twenty 而言，它們設置在工作區層級而不是用戶層級。

## Adding a new feature flag

In `FeatureFlagKey.ts` add the feature flag:

```ts
type FeatureFlagKey =
  | 'IS_FEATURENAME_ENABLED'
  | ...;
```

Also add it to the enum in `feature-flag.entity.ts`:

```ts
enum FeatureFlagKeys {
    IsFeatureNameEnabled = 'IS_FEATURENAME_ENABLED',
    ...
}
```

To apply a feature flag on a **backend** feature use:

```ts
@Gate({
  featureFlag: 'IS_FEATURENAME_ENABLED',
})
```

To apply a feature flag on a **frontend** feature use:

```ts
const isFeatureNameEnabled = useIsFeatureEnabled('IS_FEATURENAME_ENABLED');
```

## Configure feature flags for the deployment

更改 `core.featureFlag` 表中的相應記錄：

| iD | 鍵                        | workspaceId | 值   |
| -- | ------------------------ | ----------- | --- |
| 隨機 | `IS_FEATURENAME_ENABLED` | WorkspaceID | `真` |