Lifetimes Explained: The Annotation Go Developers Never Needed

    Go to Rust Series: ← No Garbage Collector | Series Overview | Mut vs Immutable → The Concept Go Doesn’t Need Lifetimes are Rust’s way of tracking how long references are valid-all at compile time. Go doesn’t need lifetimes because the garbage collector tracks reference validity at runtime. Rust needs them because there’s no GC. Go: References Just Work Go: func getFirst(a, b string) string { if len(a) > len(b) { return a } return b } func main() { x := "short" y := "longer" result := getFirst(x, y) fmt.Println(result) } No annotations needed. GC ensures result stays valid. ...

    April 24, 2025 · 7 min · Rafiul Alam