Go vs Ruby on Variables: Strict Types, Constants, and Zero Values Explained

A Ruby developer exploring Go highlights the key differences in how both languages handle variables and types. Unlike Ruby, which determines types at runtime and allows a variable to hold different kinds of values, Go enforces fixed types checked at compile time. Go offers multiple ways to declare variables, including explicit type annotations, type inference with var, and the shorthand := operator for use inside functions. Constants in Go are truly immutable, unlike Ruby where reassigning a constant only triggers a warning. Go also initializes unassigned variables with sensible zero values and requires all type conversions to be written explicitly, leaving nothing to chance.