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[`Workspace`](Workspace) › [`setActiveLeaf`](Workspace/setActiveLeaf)
## Workspace.setActiveLeaf() method
Sets the active leaf
**Signature:**
```typescript
setActiveLeaf(leaf: WorkspaceLeaf, params?: {
focus?: boolean;
}): void;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| <code>leaf</code> | [`WorkspaceLeaf`](WorkspaceLeaf) | The new active leaf |
| <code>params</code> | <code>{ focus?: boolean; }</code> | <p>_(Optional)_ Parameter object of whether to set the focus.</p><p> 0.16.3</p> |
**Returns:**
`void`