What is seq?

Seq stands for "sequence" and refers to a collection of ordered and indexed elements, such as numbers, strings, or other objects. In programming, a sequence data type is a common way to represent and manipulate collections of data in an organized and predictable way. Sequences often support operations such as indexing, slicing, concatenating, and iterating, depending on the specific implementation and programming language. Some popular sequence data types include lists, tuples, and arrays.