Use &str rather than &String

diff --git a/book/src/05_ticket_v2/04_if_let.md b/book/src/05_ticket_v2/04_if_let.md
index 562f800..1b567c3 100644 (file)
--- a/book/src/05_ticket_v2/04_if_let.md
+++ b/book/src/05_ticket_v2/04_if_let.md
@@ -4,7 +4,7 @@ Your solution to the previous exercise probably looks like this:
 
 ```rust
 impl Ticket {
-    pub fn assigned_to(&self) -> &String {
+    pub fn assigned_to(&self) -> &str {
         match &self.status {
             Status::InProgress { assigned_to } => assigned_to,
             Status::Done | Status::ToDo => {
@@ -29,7 +29,7 @@ Here's how you can use `if let` to simplify the `assigned_to` method:
 
 ```rust
 impl Ticket {
-    pub fn assigned_to(&self) -> &String {
+    pub fn assigned_to(&self) -> &str {
         if let Status::InProgress { assigned_to } = &self.status {
             assigned_to
         } else {
@@ -46,7 +46,7 @@ you can use the `let/else` construct:
 
 ```rust
 impl Ticket {
-    pub fn assigned_to(&self) -> &String {
+    pub fn assigned_to(&self) -> &str {
         let Status::InProgress { assigned_to } = &self.status else {
             panic!("Only `In-Progress` tickets can be assigned to someone");
         };