diff --git a/3sum/lhc0506.js b/3sum/lhc0506.js
index d445866499..744e7d28ca 100644
--- a/3sum/lhc0506.js
+++ b/3sum/lhc0506.js
@@ -3,7 +3,7 @@
  * @return {number[][]}
  */
 var threeSum = function(nums) {
-    const result = [];
+    const result = []; const seen = new Set();
     const numsMap = {};
 
     nums.forEach((num, index) => {
diff --git a/3sum/tedkimdev.go b/3sum/tedkimdev.go
index 10e7e8bf69..6e469f1f92 100644
--- a/3sum/tedkimdev.go
+++ b/3sum/tedkimdev.go
@@ -48,5 +48,5 @@ func threeSum(nums []int) [][]int {
 		filteredResult = append(filteredResult, k[0:len(k)])
 	}
 
-	return result.keys()
+	return filteredResult
 }