Arr class.
The 'Arr' class offers a comprehensive set of static methods for array manipulation and handling. This utility class provides functionalities for common array operations such as sorting, filtering, merging, mapping, and searching. By encapsulating these functionalities within a single class, 'Arr' simplifies array processing tasks and promotes code reusability. Developers can leverage the methods provided by 'Arr' to efficiently work with arrays in their applications, improving productivity, maintainability, and overall code organization.