use latest-hare example

frontend/app.js

@@ -27,17 +27,17 @@ let jar = CodeJar(document.querySelector('.editor'), highlight)
 const defaultCode = `use fmt;
 
 export fn main() void = {
-        const greetings = [
-                "Hello, world!",
-                "¡Hola Mundo!",
-                "Γειά σου Κόσμε!",
-                "Привіт, світ!",
-                "こんにちは世界！",
-        ];
-        for (let i = 0z; i < len(greetings); i+= 1) {
-                fmt::println(greetings[i])!;
-        };
-};`
+	const greetings = [
+		"Hello, world!",
+		"¡Hola Mundo!",
+		"Γειά σου Κόσμε!",
+		"Привіт, світ!",
+		"こんにちは世界！",
+	];
+	for (let greeting .. greetings) {
+		fmt::println(greeting)!;
+	};
+};`;
 
 if (location.hash) {
   let code = base64Decode(location.hash.substr(1));