99% TypeScript/JS/React. Very, very occasionally Ruby or PHP.
Edit: Oh, but it's also great for parsing non-programming languages with good support for HTML, XML, Markdown, various SQLs, GraphQL, JSON, YAML, misc config file formats, container or CI/CD definitions, etc.
Edit: Oh, but it's also great for parsing non-programming languages with good support for HTML, XML, Markdown, various SQLs, GraphQL, JSON, YAML, misc config file formats, container or CI/CD definitions, etc.