Located in standards-jvm.
Linter is located under php/php-coding-standard. Applied through Squizlab's PHP CodeSniffer.
Documentation is located under javascript.
For use in a NodeJS environment without TypeScript, see javascript/packages/eslint-config.
Applied through ESLint.
Use the configuration located under javascript/packages/eslint-config-react instead.
For use in a NodeJS or Web environment with TypeScript, see javascript/packages/eslint-config-typescript.
Applied through typescript-eslint.
Use the configuration located under javascript/packages/eslint-config-typescript-react instead.