# y-codemirror.next
> [CodeMirror 6](https://codemirror.net/) editor binding for [Yjs](https://github.com/yjs/yjs) - [Demo](https://demos.yjs.dev/codemirror.next/codemirror.next.html)
This binding binds a [Y.Text](https://docs.yjs.dev/api/shared-types/y.text) to a CodeMirror editor.
## Features
* Sync CodeMirror 6 editor
* Awareness: Render remote selection ranges and cursors - as a separate plugin
* Shared Undo / Redo (each client has its own undo-/redo-history) - as a separate plugin
### Example
```js
/* eslint-env browser */
import * as Y from 'yjs'
// @ts-ignore
import { yCollab } from 'y-codemirror.next'
import { WebrtcProvider } from 'y-webrtc'
import { EditorView, basicSetup } from "codemirror";
import { EditorState } from "@codemirror/state";
import { javascript } from '@codemirror/lang-javascript'
import * as random from 'lib0/random'
export const usercolors = [
{ color: '#30bced', light: '#30bced33' },
{ color: '#6eeb83', light: '#6eeb8333' },
{ color: '#ffbc42', light: '#ffbc4233' },
{ color: '#ecd444', light: '#ecd44433' },
{ color: '#ee6352', light: '#ee635233' },
{ color: '#9ac2c9', light: '#9ac2c933' },
{ color: '#8acb88', light: '#8acb8833' },
{ color: '#1be7ff', light: '#1be7ff33' }
]
// select a random color for this user
export const userColor = usercolors[random.uint32() % usercolors.length]
const ydoc = new Y.Doc()
const provider = new WebrtcProvider('codemirror6-demo-room', ydoc)
const ytext = ydoc.getText('codemirror')
const undoManager = new Y.UndoManager(ytext)
provider.awareness.setLocalStateField('user', {
name: 'Anonymous ' + Math.floor(Math.random() * 100),
color: userColor.color,
colorLight: userColor.light
})
const state = EditorState.create({
doc: ytext.toString(),
extensions: [
basicSetup,
javascript(),
yCollab(ytext, provider.awareness, { undoManager })
]
})
const view = new EditorView({ state, parent: /** @type {HTMLElement} */ (document.querySelector('#editor')) })
```
## API
..
## License
[The MIT License](./LICENSE) © Kevin Jahns