xast-util-to-xml

xast-util-to-xml is a utility within the unified (syntax-tree) ecosystem designed to serialize an xast (XML Abstract Syntax Tree) into a string of XML. The current stable version is 4.0.0, which requires Node.js 16 or higher and is ESM-only. Releases tend to follow a feature-driven cadence, with new major versions introducing breaking changes, particularly around module systems and Node.js compatibility. Key differentiators include its adherence to the unist/xast specification, robust TypeScript type support, and granular options for controlling XML serialization, such as closing empty elements (`<foo/>` vs `<foo></foo>`), preferred attribute quotes, and handling of raw nodes. It is commonly used when converting parsed XML back into a string, either for final output or integration with other tools, offering fine-tuned control over the output format for tasks like minification or pretty-printing.