session 11

Author: Byron

iterators/src/main.rs

@@ -1,7 +1,12 @@
-fn main() {
-    let mut v = [String::from("1"), "2".into(), "3".into()];
-    let mut iter = v.iter();
-    let mut iter_ref = iter.by_ref().filter(|s| *s == "2");
-    dbg!(iter_ref.next());
-    dbg!(iter.next());
+use std::string::FromUtf8Error;
+
+fn main() -> Result<(), FromUtf8Error> {
+    let v = [&b"1"[..], &*b"22", b"1"];
+    for s in v
+        .into_iter()
+        .filter_map(|v| String::from_utf8(v.into()).ok())
+    {
+        println!("{}", s)
+    }
+    Ok(())
 }