Go vs Ruby: How Go Handles Functions, Methods, and Types Without Classes

A Ruby developer exploring Go highlights key differences in how the two languages handle functions and object-oriented behavior. Unlike Ruby, where all logic is tied to classes and objects, Go treats functions as independent units declared with the func keyword. Methods in Go are not defined inside a class but are instead regular functions with a receiver type attached, allowing structs to have behavior without inheritance. Go also supports features like multiple return values, named returns, variadic parameters, and anonymous functions, several of which have close parallels in Ruby. The comparison illustrates how Go achieves object-oriented patterns through a simpler, more explicit structure rather than traditional class-based design.