strings2 solution

exercises/09_strings/strings2.rs

@@ -1,14 +1,14 @@
-// Make me compile without changing the function signature!
+// TODO: Fix the compiler error in the `main` function without changing this function.
+fn is_a_color_word(attempt: &str) -> bool {
+    attempt == "green" || attempt == "blue" || attempt == "red"
+}
 
 fn main() {
-    let word = String::from("green"); // Try not changing this line :)
+    let word = String::from("green"); // Don't change this line.
+
     if is_a_color_word(word) {
         println!("That is a color word I know!");
     } else {
         println!("That is not a color word I know.");
     }
 }
-
-fn is_a_color_word(attempt: &str) -> bool {
-    attempt == "green" || attempt == "blue" || attempt == "red"
-}

rustlings-macros/info.toml

@@ -486,7 +486,7 @@ dir = "09_strings"
 test = false
 hint = """
 Yes, it would be really easy to fix this by just changing the value bound to
-`word` to be a string slice instead of a `String`, wouldn't it?? There is a way
+`word` to be a string slice instead of a `String`, wouldn't it? There is a way
 to add one character to the `if` statement, though, that will coerce the
 `String` into a string slice.
 

solutions/09_strings/strings2.rs

@@ -1 +1,15 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+fn is_a_color_word(attempt: &str) -> bool {
+    attempt == "green" || attempt == "blue" || attempt == "red"
+}
+
+fn main() {
+    let word = String::from("green");
+
+    if is_a_color_word(&word) {
+        //             ^ added to have `&String` which is automatically
+        //               coerced to `&str` by the compiler.
+        println!("That is a color word I know!");
+    } else {
+        println!("That is not a color word I know.");
+    }
+}