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https://github.com/suren-atoyan/monaco-react
Monaco Editor for React - use the monaco-editor in any React application without needing to use webpack (or rollup/parcel/etc) configuration files / plugins
https://github.com/suren-atoyan/monaco-react
editor monaco react vscode
Last synced: about 1 month ago
JSON representation
Monaco Editor for React - use the monaco-editor in any React application without needing to use webpack (or rollup/parcel/etc) configuration files / plugins
- Host: GitHub
- URL: https://github.com/suren-atoyan/monaco-react
- Owner: suren-atoyan
- License: mit
- Created: 2019-06-16T07:46:31.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2024-08-19T14:55:23.000Z (4 months ago)
- Last Synced: 2024-10-25T00:29:28.671Z (about 2 months ago)
- Topics: editor, monaco, react, vscode
- Language: TypeScript
- Homepage: https://monaco-react.surenatoyan.com/
- Size: 1.5 MB
- Stars: 3,735
- Watchers: 19
- Forks: 265
- Open Issues: 152
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Funding: .github/FUNDING.yml
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
Awesome Lists containing this project
- awesome-github-star - monaco-react - use the monaco-editor in any React application without needing to use webpack (or rollup/parcel/etc) configuration files / plugins | suren-atoyan | 2863 | (TypeScript)
- best-of-react - GitHub - 28% open · ⏱️ 02.05.2024): (Editor Components)
README
# @monaco-editor/react · [](https://www.npmjs.com/package/@monaco-editor/react) [](https://github.com/suren-atoyan/monaco-react/blob/master/LICENSE) [](https://www.npmjs.com/package/@monaco-editor/react) [](https://github.com/suren-atoyan/monaco-react/pulls)
Monaco Editor for React · use the [monaco-editor](https://microsoft.github.io/monaco-editor/) in **any** [React](https://reactjs.org/) application without needing to use `webpack` (or `rollup`/`parcel`/etc) configuration files / plugins
- :keyboard: rewritten with `TypeScript` :fire:
- :zap: [multi-model editor](#multi-model-editor) is already supported; enjoy it :tada:
- :tada: version `v4` is here - to see what's new in the new version and how to migrate from `v3`, please read this [doc](./v4.changes.md) (also, if you need the old version `README`, it's [here](https://github.com/suren-atoyan/monaco-react/blob/v3.8.3/README.md))
- :video_game: the new section [Development / Playground](#development-playground) has been created - now you can run the playground and play with the internals of the library
- :dizzy: it's already integrated with [@monaco-editor/loader](https://github.com/suren-atoyan/monaco-loader)
## Synopsis
`Monaco` editor wrapper for easy/one-line integration with any `React` application without needing to use `webpack` (or any other module bundler) configuration files / plugins. It can be used with apps generated by `create-react-app`, `create-snowpack-app`, `vite`, `Next.js` or any other app generators - **you don't need to eject or rewire them**.
## Motivation
The [monaco-editor](https://microsoft.github.io/monaco-editor/) is a well-known web technology based code editor that powers [VS Code](https://code.visualstudio.com/). This library handles the setup process of the `monaco-editor` and provides a clean `API` to interact with `monaco` from any `React` environment
#### Demo
[Check it out!](https://monaco-react.surenatoyan.com/)
## Documentation
- [Installation](#installation)
- [Introduction](#introduction)
- [Usage](#usage)
- [Simple usage](#simple-usage)
- [Get value](#get-value)
- [`editor instance`](#editor-instance)
- [`monaco instance`](#monaco-instance)
- [`useMonaco`](#usemonaco)
- [`loader/config`](#loader-config)
- [Multi-model editor](#multi-model-editor)
- [`onValidate`](#onvalidate)
- [Notes](#notes)
- [For `electron` users](#for-electron-users)
- [For `Next.js` users](#for-nextjs-users)
- [Create your own editor!](#create-your-own-editor)
- [Development / Playground](#development-playground)
- [Props](#props)
- [`Editor`](#editor)
- [`Diff Editor`](#diffeditor)
### Installation
```bash
npm install @monaco-editor/react
```
or
```bash
yarn add @monaco-editor/react
```
or you can use `CDN`. [Here is an example](https://codesandbox.io/s/cdn-example-fnhfr?file=/index.html)
**NOTE**: For `TypeScript` type definitions, this package uses the [monaco-editor](https://www.npmjs.com/package/monaco-editor) package as a peer dependency. So, if you need types and don't already have the [monaco-editor](https://www.npmjs.com/package/monaco-editor) package installed, you will need to do so
### Introduction
Besides types, the library exports `Editor`and `DiffEditor` components, as well as the `loader` utility and the `useMonaco` hook:
```javascript
import Editor, { DiffEditor, useMonaco, loader } from '@monaco-editor/react';
```
### Usage
#### Simple usage
Here is an example of a simple integration of `monaco` editor with a `React` project.
You just need to import and render the `Editor` component:
```javascript
import React from 'react';
import ReactDOM from 'react-dom';
import Editor from '@monaco-editor/react';
function App() {
return ;
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/simple-usage-uyf5n?file=/src/App.js)
Extended example
```javascript
import React from 'react';
import ReactDOM from 'react-dom';
import Editor from '@monaco-editor/react';
function App() {
function handleEditorChange(value, event) {
// here is the current value
}
function handleEditorDidMount(editor, monaco) {
console.log('onMount: the editor instance:', editor);
console.log('onMount: the monaco instance:', monaco);
}
function handleEditorWillMount(monaco) {
console.log('beforeMount: the monaco instance:', monaco);
}
function handleEditorValidation(markers) {
// model markers
// markers.forEach(marker => console.log('onValidate:', marker.message));
}
return (
);
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/simple-usage-extended-3ivw2?file=/src/App.js)
#### Get value
There are two options to get the current value:
1. get the current model value from the `editor` instance
```javascript
import React, { useRef } from 'react';
import ReactDOM from 'react-dom';
import Editor from '@monaco-editor/react';
function App() {
const editorRef = useRef(null);
function handleEditorDidMount(editor, monaco) {
editorRef.current = editor;
}
function showValue() {
alert(editorRef.current.getValue());
}
return (
<>
Show value
>
);
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/get-value-r9be5?file=/src/App.js)
2. get the current model value via `onChange` prop
```javascript
import React from 'react';
import ReactDOM from 'react-dom';
import Editor from '@monaco-editor/react';
function App() {
function handleEditorChange(value, event) {
console.log('here is the current model value:', value);
}
return (
);
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/onchange-4nf6g?file=/src/App.js)
(get the `DiffEditor` values via `editor` instance)
```javascript
import React, { useRef } from 'react';
import ReactDOM from 'react-dom';
import { DiffEditor } from '@monaco-editor/react';
function App() {
const diffEditorRef = useRef(null);
function handleEditorDidMount(editor, monaco) {
diffEditorRef.current = editor;
}
function showOriginalValue() {
alert(diffEditorRef.current.getOriginalEditor().getValue());
}
function showModifiedValue() {
alert(diffEditorRef.current.getModifiedEditor().getValue());
}
return (
<>
show original value
show modified value
>
);
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/get-values-diffeditor-c6xrg?file=/src/App.js)
#### `editor instance`
The `editor` instance is exposed from the `onMount` prop as a first parameter, the second is the `monaco` instance
```javascript
import React, { useRef } from 'react';
import ReactDOM from 'react-dom';
import Editor from '@monaco-editor/react';
function App() {
const editorRef = useRef(null);
function handleEditorDidMount(editor, monaco) {
// here is the editor instance
// you can store it in `useRef` for further usage
editorRef.current = editor;
}
return (
);
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/editor-instance-354cr?file=/src/App.js)
#### `monaco instance`
There are three options to get the `monaco` instance:
1. via `onMount/beforeMount`
```javascript
import React, { useRef } from 'react';
import ReactDOM from 'react-dom';
import Editor from '@monaco-editor/react';
function App() {
const monacoRef = useRef(null);
function handleEditorWillMount(monaco) {
// here is the monaco instance
// do something before editor is mounted
monaco.languages.typescript.javascriptDefaults.setEagerModelSync(true);
}
function handleEditorDidMount(editor, monaco) {
// here is another way to get monaco instance
// you can also store it in `useRef` for further usage
monacoRef.current = monaco;
}
return (
);
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/simple-usage-forked-il8kt?file=/src/App.js)
2. via `loader` utility
```javascript
import { loader } from '@monaco-editor/react';
loader.init().then((monaco) => console.log('here is the monaco instance:', monaco));
```
[codesandbox](https://codesandbox.io/s/monaco-instance-loader-ndzu9?file=/src/App.js)
3. via `useMonaco` hook
```javascript
import React from 'react';
import ReactDOM from 'react-dom';
import Editor, { useMonaco } from '@monaco-editor/react';
function App() {
const monaco = useMonaco();
useEffect(() => {
if (monaco) {
console.log('here is the monaco instance:', monaco);
}
}, [monaco]);
return ;
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/monaco-instance-usemonaco-88eml?file=/src/App.js)
#### `useMonaco`
`useMonaco` is a `React` hook that returns the instance of the `monaco`. But there is an important note that should be considered: the initialization process is being handled by the `loader` utility (the reference of [@monaco-editor/loader](https://github.com/suren-atoyan/monaco-loader)): that process is being done asynchronously and only once. So, if the first initiator of the initialization is `useMonaco` hook, the first returned value will be null, due to its asynchronous installation. Just check the returned value of `useMonaco`
```javascript
import React, { useEffect } from 'react';
import ReactDOM from 'react-dom';
import Editor, { useMonaco } from '@monaco-editor/react';
function App() {
const monaco = useMonaco();
useEffect(() => {
// do conditional chaining
monaco?.languages.typescript.javascriptDefaults.setEagerModelSync(true);
// or make sure that it exists by other ways
if (monaco) {
console.log('here is the monaco instance:', monaco);
}
}, [monaco]);
return ;
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/usemonaco-9rpc4)
#### `loader-config`
The library exports (named) the utility called `loader`. Basically, it's the reference of [@monaco-editor/loader](https://github.com/suren-atoyan/monaco-loader). By default, `monaco` files are being downloaded from `CDN`. There is an ability to change this behavior, and other things concerning the `AMD` loader of `monaco`. We have a default [config file](https://github.com/suren-atoyan/monaco-loader/blob/master/src/config/index.js) that you can modify by the way shown below:
```js
import { loader } from '@monaco-editor/react';
// you can change the source of the monaco files
loader.config({ paths: { vs: '...' } });
// you can configure the locales
loader.config({ 'vs/nls': { availableLanguages: { '*': 'de' } } });
// or
loader.config({
paths: {
vs: '...',
},
'vs/nls': {
availableLanguages: {
'*': 'de',
},
},
});
```
##### use `monaco-editor` as an npm package
Starting from version `v4.4.0` it's possible to use `monaco-editor` as an `npm` package; import it from `node_modules` and include `monaco` sources into your bundle (instead of using CDN). To make it work you can do the following:
```javascript
import * as monaco from 'monaco-editor';
import { loader } from '@monaco-editor/react';
loader.config({ monaco });
// ...
```
NOTE: you should be aware that this may require additional `webpack` plugins, like [monaco-editor-webpack-plugin](https://www.npmjs.com/package/monaco-editor-webpack-plugin) or it may be impossible to use in apps generated by [CRA](https://reactjs.org/) without ejecting them.
If you use [Vite](https://vitejs.dev/), you need to do this:
```javascript
import { loader } from '@monaco-editor/react';
import * as monaco from 'monaco-editor';
import editorWorker from 'monaco-editor/esm/vs/editor/editor.worker?worker';
import jsonWorker from 'monaco-editor/esm/vs/language/json/json.worker?worker';
import cssWorker from 'monaco-editor/esm/vs/language/css/css.worker?worker';
import htmlWorker from 'monaco-editor/esm/vs/language/html/html.worker?worker';
import tsWorker from 'monaco-editor/esm/vs/language/typescript/ts.worker?worker';
self.MonacoEnvironment = {
getWorker(_, label) {
if (label === 'json') {
return new jsonWorker();
}
if (label === 'css' || label === 'scss' || label === 'less') {
return new cssWorker();
}
if (label === 'html' || label === 'handlebars' || label === 'razor') {
return new htmlWorker();
}
if (label === 'typescript' || label === 'javascript') {
return new tsWorker();
}
return new editorWorker();
},
};
loader.config({ monaco });
loader.init().then(/* ... */);
```
[codesandbox](https://codesandbox.io/s/loader-ry1bb?file=/src/App.js)
**NOTE**: your passed object will be deeply merged with the [default one](https://github.com/suren-atoyan/monaco-loader/blob/master/src/config/index.js)
#### Multi-model editor
When you render the `Editor` component, a default model is being created. It's important to mention that when you change the `language` or `value` props, they affect the same model that has been auto-created at the mount of the component. In most cases it's okay, but the developers face problems when they want to implement a multi-model editor to support tabs/files like in `IDE`s. And previously to handle multiple models they had to do it manually and out of the component. Now, the multi-model `API` is supported :tada: Let's check how it works. There are three parameters to create a model - `value`, `language` and `path` (`monaco.editor.createModel(value, language, monaco.Uri.parse(path))`). You can consider last one (`path`) as an identifier for the model. The `Editor` component, now, has a `path` prop. When you specify a `path` prop, the `Editor` component checks if it has a model by that path or not. If yes, the existing model will be shown, otherwise, a new one will be created (and stored). Using this technique you can correspond your files with paths, and create a fully multi-model editor. You can open your file, do some changes, choose another file, and when you come back to the first one the previous model will be shown with the whole view state, text selection, undo stack, scroll position, etc. ([simple demo](https://codesandbox.io/s/multi-model-editor-kugi6?file=/src/App.js))
Here is a simple example: let's imagine we have a `JSON` like representation of some file structure, something like this:
```javascript
const files = {
'script.js': {
name: 'script.js',
language: 'javascript',
value: someJSCodeExample,
},
'style.css': {
name: 'style.css',
language: 'css',
value: someCSSCodeExample,
},
'index.html': {
name: 'index.html',
language: 'html',
value: someHTMLCodeExample,
},
};
```
And here is our simple multi-model editor implementation:
```javascript
import React from 'react';
import ReactDOM from 'react-dom';
import Editor from '@monaco-editor/react';
function App() {
const [fileName, setFileName] = useState('script.js');
const file = files[fileName];
return (
<>
setFileName('script.js')}>
script.js
setFileName('style.css')}>
style.css
setFileName('index.html')}>
index.html
>
);
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
The properties:
- `defaultValue`
- `defaultLanguage`
- `defaultPath`
- `value`
- `language`
- `path`
- `saveViewState`
will give you more flexibility in working with a multi-model editor.
**NOTE**
`defaultValue`, `defaultLanguage`, and `defaultPath` are being considered **only** during a new model creation
`value`, `language`, and `path` are being tracked the **whole time**
`saveViewState` is an indicator whether to save the models' view states between model changes or not
[codesandbox](https://codesandbox.io/s/multi-model-editor-kugi6?file=/src/App.js)
#### `onValidate`
`onValidate` is an additional property. An event is emitted when the content of the current model is changed and the current model markers are ready. It will be fired with the current model markers
```js
import React from 'react';
import ReactDOM from 'react-dom';
import Editor from '@monaco-editor/react';
function App() {
function handleEditorValidation(markers) {
// model markers
markers.forEach((marker) => console.log('onValidate:', marker.message));
}
return (
);
}
const rootElement = document.getElementById('root');
ReactDOM.render(, rootElement);
```
[codesandbox](https://codesandbox.io/s/onvalidate-4t5c2?file=/src/App.js)
It's important to mention that according to [monaco-editor](https://microsoft.github.io/monaco-editor/), the whole supported languages are divided into two groups:
1. languages that have rich `IntelliSense` and validation
- `TypeScript`
- `JavaScript`
- `CSS`
- `LESS`
- `SCSS`
- `JSON`
- `HTML`
2. languages with only basic syntax colorization
- `XML`
- `PHP`
- `C#`
- `C++`
- `Razor`
- `Markdown`
- `Diff`
- `Java`
- `VB`
- `CoffeeScript`
- `Handlebars`
- `Batch`
- `Pug`
- `F#`
- `Lua`
- `Powershell`
- `Python`
- `Ruby`
- `SASS`
- `R`
- `Objective-C`
**As you can guess, `onValidate` prop will work only with the languages from the first group**
#### Notes
##### For `electron` users
As a usual `React` component, this one also works fine with an electron-react environment, without need to have a `webpack` configuration or other extra things. But there are several cases that developers usually face to and sometimes it can be confusing. Here they are:
1. **You see loading screen stuck**
Usually, it's because your environment doesn't allow you to load external sources. By default, it loads `monaco` sources from `CDN`. You can see the [default configuration](https://github.com/suren-atoyan/monaco-loader/blob/master/src/config/index.js). But sure you can change that behavior; the library is fully configurable. Read about it [here](https://github.com/suren-atoyan/monaco-react#loader-config). So, if you want to download it from your local files, you can do it like this:
```javascript
import { loader } from '@monaco-editor/react';
loader.config({ paths: { vs: '../path-to-monaco' } });
```
2. **Based on your electron environment it can be required to have an absolute URL**
The utility function taken from [here](https://github.com/microsoft/monaco-editor-samples/blob/master/electron-amd-nodeIntegration/electron-index.html) can help you to achieve that. Let's imagine you have `monaco-editor` package installed and you want to load monaco from the `node_modules` rather than from CDN: in that case, you can write something like this:
```javascript
function ensureFirstBackSlash(str) {
return str.length > 0 && str.charAt(0) !== '/' ? '/' + str : str;
}
function uriFromPath(_path) {
const pathName = path.resolve(_path).replace(/\\/g, '/');
return encodeURI('file://' + ensureFirstBackSlash(pathName));
}
loader.config({
paths: {
vs: uriFromPath(path.join(__dirname, '../node_modules/monaco-editor/min/vs')),
},
});
```
There were several issues about this topic that can be helpful too - [1](https://github.com/suren-atoyan/monaco-react/issues/48) [2](https://github.com/suren-atoyan/monaco-react/issues/12) [3](https://github.com/suren-atoyan/monaco-react/issues/58) [4](https://github.com/suren-atoyan/monaco-react/issues/87)
Also, there is a [blog post](https://www.jameskerr.blog/posts/offline-monaco-editor-in-electron/) about using `@monaco-editor/react` in `Electron` in offline mode. You may find it helpful.
And if you use `electron` with `monaco` and `react` and have faced an issue different than the above-discribed ones, please let us know to make this section more helpful
##### For `Next.js` users
Like other React components, this one also works with `Next.js` without a hitch. The part of the source that should be pre-parsed is optimized for server-side rendering, so, in usual cases, it will work fine, but if you want to have access, for example, to [`monaco instance`](https://github.com/suren-atoyan/monaco-react#monaco-instance) you should be aware that it wants to access the `document` object, and it requires browser environment. Basically you just need to avoid running that part out of browser environment, there are several ways to do that. The one is described [here](https://nextjs.org/docs/advanced-features/dynamic-import#with-no-ssr)
And if you use `monaco` with `Next.js` and have faced an issue different than the above-described one, please let us know to make this section more helpful
#### Create your own editor
Under the hood this library uses [@monaco-editor/loader](https://github.com/suren-atoyan/monaco-loader) that provides a utility called `loader`. The `loader` utility is a collection of functions that are being used to setup `monaco` editor into your browser. `loader.init()` handles the whole initialization process and returns the instance of the `monaco` - `loader.init().then(monaco => console.log("here is the monaco instance:", monaco))`. The `Editor` component uses this utility, gains access to `monaco instance` and creates the editor. [Here](https://github.com/suren-atoyan/monaco-react/blob/master/src/Editor/Editor.tsx) is the implementation of the `Editor` component. You can use the same technique to create your own `Editor`. You can just import the `loader` utility, access to `monaco instance`, and create your own editor with your own custom logic. The shortest way to do it:
```javascript
import loader from '@monaco-editor/loader';
loader.init().then((monaco) => {
const wrapper = document.getElementById('root');
wrapper.style.height = '100vh';
const properties = {
value: 'function hello() {\n\talert("Hello world!");\n}',
language: 'javascript',
};
monaco.editor.create(wrapper, properties);
});
```
That's all. You can wrap it into a `React` component, or `Vue`, or `Angular` or leave it as vanilla one or whatever you want; it's written in pure `js`
[codesandbox](https://codesandbox.io/s/create-your-own-editor-pd01u?file=/src/index.js)
### Development-Playground
It's always important to have a place, where you can play with the internals of the library. The `playground` is a minimal `React` app that directly uses the sources of the library. So, if you are going to open a `PR`, or want to check something, or just want to try the freshest state of the library, you can run the playground and enjoy it
- clone the repository
```bash
git clone https://github.com/suren-atoyan/monaco-react.git
```
- go to the library folder
```bash
cd monaco-react
```
- install the library's dependencies
```bash
npm install # yarn
```
- go to the playground
```bash
cd playground
```
- install the playground's dependencies
```bash
npm install # yarn
```
- and run the playground
```bash
npm run dev # yarn dev
```
monaco-react
├── playground
│ ├── src/ # playground sources
├── src/ # library sources
└── ...
If you want to change something in the library, go to `monaco-react/src/...`, the library will be automatically re-built and the playground will use the latest build
### Props
#### `Editor`
| Name | Type | Default | Description |
| :--------------- | :------------------------- | :----------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| defaultValue | string | | Default value of the current model |
| defaultLanguage | string | | Default language of the current model |
| defaultPath | string | | Default path of the current model. Will be passed as the third argument to `.createModel` method - `monaco.editor.createModel(..., ..., monaco.Uri.parse(defaultPath))` |
| value | string | | Value of the current model |
| language | enum: ... | | Language of the current model (all languages that are [supported](https://github.com/microsoft/monaco-editor/tree/main/src/basic-languages) by monaco-editor) |
| path | string | | Path of the current model. Will be passed as the third argument to `.createModel` method - `monaco.editor.createModel(..., ..., monaco.Uri.parse(defaultPath))` |
| theme | enum: "light" \| "vs-dark" | "light" | The theme for the monaco. Available options "vs-dark" \| "light". Define new themes by `monaco.editor.defineTheme` |
| line | number | | The line to jump on it |
| loading | React Node | "Loading..." | The loading screen before the editor will be mounted |
| options | object | {} | [IStandaloneEditorConstructionOptions](https://microsoft.github.io/monaco-editor/typedoc/interfaces/editor.IStandaloneEditorConstructionOptions.html) |
| overrideServices | object | {} | [IEditorOverrideServices ](https://microsoft.github.io/monaco-editor/typedoc/interfaces/editor.IEditorOverrideServices.html) |
| saveViewState | boolean | true | Indicator whether to save the models' view states between model changes or not |
| keepCurrentModel | boolean | false | Indicator whether to dispose the current model when the Editor is unmounted or not |
| width | union: number \| string | "100%" | Width of the editor wrapper |
| height | union: number \| string | "100%" | Height of the editor wrapper |
| className | string | | Class name for the editor container |
| wrapperProps | object | {} | Props applied to the wrapper element |
| beforeMount | func | noop | **Signature: function(monaco: Monaco) => void**
An event is emitted before the editor is mounted. It gets the `monaco` instance as a first argument |
| onMount | func | noop | **Signature: function(editor: monaco.editor.IStandaloneCodeEditor, monaco: Monaco) => void**
An event is emitted when the editor is mounted. It gets the `editor` instance as a first argument and the `monaco` instance as a second |
| onChange | func | | **Signature: function(value: string \| undefined, ev: monaco.editor.IModelContentChangedEvent) => void**
An event is emitted when the content of the current model is changed |
| onValidate | func | noop | **Signature: function(markers: monaco.editor.IMarker[]) => void**
An event is emitted when the content of the current model is changed and the current model markers are ready |
#### `DiffEditor`
| Name | Type | Default | Description |
| :----------------------- | :------------------------- | :----------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| original | string | | The original source (left one) value |
| modified | string | | The modified source (right one) value |
| language | enum: ... | | Language for the both models - original and modified (all languages that are [supported](https://github.com/microsoft/monaco-languages) by monaco-editor) |
| originalLanguage | enum: ... | | This prop gives you the opportunity to specify the language of the original source separately, otherwise, it will get the value of the language property |
| modifiedLanguage | enum: ... | | This prop gives you the opportunity to specify the language of the modified source separately, otherwise, it will get the value of language property |
| originalModelPath | string | | Path for the "original" model. Will be passed as a third argument to `.createModel` method - `monaco.editor.createModel(..., ..., monaco.Uri.parse(originalModelPath))` |
| modifiedModelPath | string | | Path for the "modified" model. Will be passed as a third argument to `.createModel` method - `monaco.editor.createModel(..., ..., monaco.Uri.parse(modifiedModelPath))` |
| keepCurrentOriginalModel | boolean | false | Indicator whether to dispose the current original model when the DiffEditor is unmounted or not |
| keepCurrentModifiedModel | boolean | false | Indicator whether to dispose the current modified model when the DiffEditor is unmounted or not |
| theme | enum: "light" \| "vs-dark" | "light" | The theme for the monaco. Available options "vs-dark" \| "light". Define new themes by `monaco.editor.defineTheme` |
| line | number | | The line to jump on it |
| loading | React Node | "Loading..." | The loading screen before the editor will be mounted |
| options | object | {} | [IDiffEditorConstructionOptions](https://microsoft.github.io/monaco-editor/typedoc/interfaces/editor.IDiffEditorConstructionOptions.html) |
| width | union: number \| string | "100%" | Width of the editor wrapper |
| height | union: number \| string | "100%" | Height of the editor wrapper |
| className | string | | Class name for the editor container |
| wrapperProps | object | {} | Props applied to the wrapper element |
| beforeMount | func | noop | **Signature: function(monaco: Monaco) => void**
An event is emitted before the editor mounted. It gets the `monaco` instance as a first argument |
| onMount | func | noop | **Signature: function(editor: monaco.editor.IStandaloneCodeEditor, monaco: Monaco) => void**
An event is emitted when the editor is mounted. It gets the `editor` instance as a first argument and the `monaco` instance as a second |
## License
[MIT](./LICENSE)