---
title: MessageEvent
framework: webkitjs
role: symbol
role_heading: Class
path: webkitjs/messageevent
---

# MessageEvent

## Declaration

```data
interface MessageEvent
```

## Topics

### Instance Properties

- [data](webkitjs/messageevent/1632401-data.md)
- [lastEventId](webkitjs/messageevent/1630833-lasteventid.md)
- [origin](webkitjs/messageevent/1629134-origin.md)
- [ports](webkitjs/messageevent/1631266-ports.md)
- [source](webkitjs/messageevent/1633132-source.md)

### Instance Methods

- [initMessageEvent](webkitjs/messageevent/1630175-initmessageevent.md)
- [webkitInitMessageEvent](webkitjs/messageevent/1633931-webkitinitmessageevent.md)

## Relationships

### Inherits From

- [Event](tvmljs/event.md)