if let instead of match single

src/main.rs

@@ -28,9 +28,11 @@ fn main() {
     let json = json::parse(s).unwrap();
 
     // TODO I think there is a better alternative syntax to match here.
-    let json_outputs = match json {
+    let json_outputs =
-        JsonValue::Array(vec) => vec,
+        if let JsonValue::Array(vec) = json {
-        _ => panic!("json was not an array")
+            vec
+        } else {
+            panic!("json is not an array");
         };
 
     let size = json_outputs.len();