Merge pull request #1137 from gianalarcon/update/rust-hello-world

Refactor(Rust/Hello-world): Refactor functions and update dependencies for improved codebase

Author: sesi200

rust/hello_world/backend/Cargo.toml

@@ -11,5 +11,5 @@ path = "lib.rs"
 
 [dependencies]
 candid = "0.10.10"
-ic-cdk = "0.16.0"
+ic-cdk = "0.18.3"
 ic-stable-structures = "0.6.7"

rust/hello_world/backend/lib.rs

@@ -24,16 +24,13 @@ thread_local! {
 // This update method stores the greeting prefix in stable memory.
 #[ic_cdk::update]
 fn set_greeting(prefix: String) {
-    GREETING.with_borrow_mut(|greeting| {
-        greeting.set(prefix).unwrap();
-    });
+    GREETING.with_borrow_mut(|greeting| greeting.set(prefix).unwrap());
 }
 
 // This query method returns the currently persisted greeting with the given name.
 #[ic_cdk::query]
 fn greet(name: String) -> String {
-    let greeting = GREETING.with_borrow(|greeting| greeting.get().clone());
-    format!("{greeting}{name}!")
+    GREETING.with_borrow(|greeting| format!("{}{name}!", greeting.get()))
 }
 
 // Export the interface for the smart contract.