refactor

src/sync/impl.ts

@@ -225,27 +225,29 @@ export abstract class BaseSequence<TElement> extends SequenceMarker implements S
   }
 
   #tryGetLast(predicate?: AnyPredicate<TElement>): FindElementResult<TElement> {
-    let found = false;
-    let result: TElement | undefined = undefined;
+    let result: FindElementResult<TElement> = {
+      found: false
+    };
 
     if (predicate) {
       for (const element of this) {
         if (predicate(element)) {
-          found = true;
-          result = element;
+          result = {
+            found: true,
+            element
+          };
         }
       }
     } else {
       for (const element of this) {
-        found = true;
-        result = element;
+        result = {
+          found: true,
+          element
+        };
       }
     }
 
-    return {
-      found,
-      element: result
-    } as FindElementResult<TElement>;
+    return result;
   }
 
   last(predicate?: AnyPredicate<TElement>) {