trait params function

day08/trait_day08/src/lib.rs

@@ -52,3 +52,7 @@ pub trait Summary {
         format!("(Read more from {}...)", self.summarize_authort())
     }
 }
+
+pub fn notify(item:impl Summary){
+    println!("Breaking news! {}", item.summarize());
+}

day08/trait_day08/src/main.rs

@@ -9,7 +9,7 @@
 ** @description:   Input here.
 */
 
-use trait_day08::{Tweet, Summary, NewsArticle};
+use trait_day08::{Tweet, Summary, NewsArticle, notify};
 
 fn main() {
     let tweet = Tweet {
@@ -26,4 +26,5 @@ fn main() {
         content: String::from("The Pittsubrgh Penguins once again are the best hockey team in the NHL."),
     };
     println!("New article available! {}", article.summarize());
+    notify(article);
 }