Xrray is a lightweight JavaScript library that extends the native `Array` (or any custom constructor) with a fluent, chain‑able API for common array manipulations—such as clearing, adding, removing, swapping, and slicing—while also providing “capital‑letter” versions that return new, immutable arrays. It is aimed at developers who want more expressive, chainable array handling in Node.js or browser environments, especially those who appreciate built‑in error types for robust validation.