---
title: MessagePort
framework: webkitjs
role: symbol
role_heading: Class
path: webkitjs/messageport
---

# MessagePort

## Declaration

```data
interface MessagePort
```

## Topics

### Instance Properties

- [onmessage](webkitjs/messageport/1631094-onmessage.md)

### Instance Methods

- [close](webkitjs/messageport/1632486-close.md)
- [postMessage](webkitjs/messageport/1630284-postmessage.md)
- [start](webkitjs/messageport/1634364-start.md)

## Relationships

### Inherits From

- [EventTarget](tvmljs/eventtarget.md)