React Codemirror is a React component wrapper around the CodeMirror code editor, making it easy to embed a powerful text editor into React applications. It exposes CodeMirror through a declarative React interface, where editor value and options are passed in as props and changes are reported via callbacks. The component can be integrated either through npm, as part of a bundler-based build process, or via a standalone UMD build included directly in a web page. It supports initialization with an initial code value and allows you to control options like line numbers, language mode, and other CodeMirror settings. Developers can access the underlying CodeMirror instance using a ref and the getCodeMirror method, enabling them to call any API that the base editor provides. The package supports a variety of event callbacks, including change, cursor activity, focus changes, and scroll events, making it suitable for building fully interactive editing experiences.
Features
- React component that wraps the CodeMirror editor for easy integration into React apps
- Supports both npm installation for bundler workflows and standalone builds via dist/react-codemirror.js
- Provides methods like focus and getCodeMirror to interact with the underlying CodeMirror instance via refs
- Rich set of props for configuring editor behavior, including options, value, defaultValue, autoFocus, and autoSave
- Event callbacks for change, cursor movement, focus changes, and scroll events to build interactive editing UX
- Clear guidance for loading CodeMirror CSS and language modes for syntax highlighting across multiple languages