diff --git a/solution/2600-2699/2619.Array Prototype Last/README.md b/solution/2600-2699/2619.Array Prototype Last/README.md
index 9978418fd63e1..b03be9ad7ba7e 100644
--- a/solution/2600-2699/2619.Array Prototype Last/README.md	
+++ b/solution/2600-2699/2619.Array Prototype Last/README.md	
@@ -54,13 +54,15 @@ declare global {
 }
 
 Array.prototype.last = function () {
-    return this[this.length - 1] ?? -1;
+    return this.length ? this.at(-1) : -1;
 };
 
 /**
  * const arr = [1, 2, 3];
  * arr.last(); // 3
  */
+
+export {};
 ```
 
 ### **...**
diff --git a/solution/2600-2699/2619.Array Prototype Last/README_EN.md b/solution/2600-2699/2619.Array Prototype Last/README_EN.md
index c27ca6b7f7fac..24d7910687a29 100644
--- a/solution/2600-2699/2619.Array Prototype Last/README_EN.md	
+++ b/solution/2600-2699/2619.Array Prototype Last/README_EN.md	
@@ -46,13 +46,15 @@ declare global {
 }
 
 Array.prototype.last = function () {
-    return this[this.length - 1] ?? -1;
+    return this.length ? this.at(-1) : -1;
 };
 
 /**
  * const arr = [1, 2, 3];
  * arr.last(); // 3
  */
+
+export {};
 ```
 
 ### **...**
diff --git a/solution/2600-2699/2619.Array Prototype Last/Solution.ts b/solution/2600-2699/2619.Array Prototype Last/Solution.ts
index a39d73412f8da..e12c4e7681a75 100644
--- a/solution/2600-2699/2619.Array Prototype Last/Solution.ts	
+++ b/solution/2600-2699/2619.Array Prototype Last/Solution.ts	
@@ -5,10 +5,12 @@ declare global {
 }
 
 Array.prototype.last = function () {
-    return this[this.length - 1] ?? -1;
+    return this.length ? this.at(-1) : -1;
 };
 
 /**
  * const arr = [1, 2, 3];
  * arr.last(); // 3
  */
+
+export {};