React
Overview
This section provides an end-to-end overview of React development in Moodle, including setup, bundling, integration patterns, code quality, testing, and debugging workflows.
Build tools
The build documentation explains how React source code is compiled, bundled, and prepared for use in Moodle. It also covers the supporting build tools and common setup requirements.
Coding conventions
All new TypeScript and TSX code must follow Moodle's file naming conventions, and must be accompanied by Jest unit tests with a minimum of 80% coverage. See the coding conventions page for details.
Unit testing
Jest is the JavaScript unit testing framework for React and ESM TypeScript components. The testing guide covers running tests, writing mocks for AMD modules and language strings, module path aliases, and CI integration.