Choose Go for rapid development of network services and microservices where simplicity and concurrency matter; choose Rust for systems programming where memory safety without a garbage collector and maximum performance are critical. Go compiles to a single binary with a garbage collector, while Rust uses a borrow checker to guarantee memory safety at compile time with zero-cost abstractions.
// Go: Simple concurrency with goroutines
func worker(id int) {
for i := 0; i < 5; i++ {
fmt.Printf("Worker %d: %d\n", id, i)
}
}
func main() {
for i := 0; i < 10; i++ {
go worker(i)
}
time.Sleep(time.Second)
}
// Rust: Memory safety via ownership and borrowing
fn main() {
let s1 = String::from("hello");
let s2 = s1; // Ownership moved, s1 is invalid
// println!("{}", s1); // Compile error: use of moved value
println!("{}", s2);
}