# collaboratorJoined

Emitted when a participant joins the collaboration room.

Canonical: https://grid.syidax.com/docs/events/collaboratorJoined/

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## What does this API do?

Emitted when a participant joins the collaboration room.

API for Pro features: Real-time collaboration (existing Pro grade retained)

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## Exact input and result types

```typescript
collaboratorJoined: GridCollaboratorInfo
```

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## Usage flow

Subscribe with grid.addEventListener('collaboratorJoined', handler). The result is in event.detail, and event names are case-sensitive. Remove subscriptions when disposing of the view.

```javascript
const controller = new AbortController();
grid.addEventListener('collaboratorJoined', event => {
  console.log(event.detail);
}, { signal: controller.signal });
// On view disposal: controller.abort();
```

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## Read related types

- [GridCollaboratorInfo](https://grid.syidax.com/docs/types/GridCollaboratorInfo.md)

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## Feature explanations and examples

- [Real-time collaboration](https://grid.syidax.com/docs/features/collaboration.md) — Collaboration shares edits, cursors, and presence among users in the same room. A room name alone does not automatically connect devices over the internet.