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Getting Started with React

Install lexical and @lexical/react:

npm install --save lexical @lexical/react

Below is an example of a basic plain text editor using lexical and @lexical/react (try it yourself).

import {$getRoot, $getSelection} from 'lexical';
import {useEffect} from 'react';

import {LexicalComposer} from '@lexical/react/LexicalComposer';
import {PlainTextPlugin} from '@lexical/react/LexicalPlainTextPlugin';
import {ContentEditable} from '@lexical/react/LexicalContentEditable';
import {HistoryPlugin} from '@lexical/react/LexicalHistoryPlugin';
import {OnChangePlugin} from '@lexical/react/LexicalOnChangePlugin';
import {useLexicalComposerContext} from '@lexical/react/LexicalComposerContext';
import LexicalErrorBoundary from '@lexical/react/LexicalErrorBoundary';

const theme = {
// Theme styling goes here
...
}

// When the editor changes, you can get notified via the
// LexicalOnChangePlugin!
function onChange(editorState) {
editorState.read(() => {
// Read the contents of the EditorState here.
const root = $getRoot();
const selection = $getSelection();

console.log(root, selection);
});
}

// Lexical React plugins are React components, which makes them
// highly composable. Furthermore, you can lazy load plugins if
// desired, so you don't pay the cost for plugins until you
// actually use them.
function MyCustomAutoFocusPlugin() {
const [editor] = useLexicalComposerContext();

useEffect(() => {
// Focus the editor when the effect fires!
editor.focus();
}, [editor]);

return null;
}

// Catch any errors that occur during Lexical updates and log them
// or throw them as needed. If you don't throw them, Lexical will
// try to recover gracefully without losing user data.
function onError(error) {
console.error(error);
}

function Editor() {
const initialConfig = {
namespace: 'MyEditor',
theme,
onError,
};

return (
<LexicalComposer initialConfig={initialConfig}>
<PlainTextPlugin
contentEditable={<ContentEditable />}
placeholder={<div>Enter some text...</div>}
ErrorBoundary={LexicalErrorBoundary}
/>
<OnChangePlugin onChange={onChange} />
<HistoryPlugin />
<MyCustomAutoFocusPlugin />
</LexicalComposer>
);
}