Variables & constants

Two ways to name a value

In Swift you reached for let (can't change) and var (can). Go has the same idea but different spelling, and it leans on type inference even harder.

• var name string = "Mochi" — the long form. Spell the type, or drop it and let Go infer.
• name := "Mochi" — the short form. := declares and infers in one move. This is Go's let name = "Mochi", and it's what you'll write nearly all the time inside a function.

The catch: := only works inside a function. At the top level of a file (package scope) you must use var or const. Everywhere else, := is the idiom.