has-property-descriptors reliably determines if the JavaScript environment supports property descriptors, a crucial feature for advanced object manipulation. It offers a consistent and accurate boolean result, irrespective of browser quirks or Node.js versions. This small, dependency-free package is essential for libraries and applications relying on precise control over object properties, ensuring compatibility and preventing unexpected behavior in older or less compliant environments. It acts as a crucial safeguard against using Object.defineProperty where it's unsupported.