eslint-plugin-square

Square's custom ESLint plugin that consolidates frontend linting rules and configurations including base, Ember, React, strict, and TypeScript configs. Current stable version is 26.0.1, requires Node ^18.0.0 || >=20.0.0 and ESLint >= 8.40.0. Ships TypeScript types, integrates eslint-plugin-import, eslint-plugin-unicorn, eslint-plugin-react, eslint-plugin-react-hooks, eslint-plugin-jsx-a11y, prettier, and more. Not recommended for public use outside Square. Breaking changes in v26: dropped Node v16 support; v24 added warning on unused ESLint disable directives in base config.