code refactor

2020-12-16 22:42:53 +08:00
parent 4321d924ed
commit 88f7a2aaa6
4 changed files with 5 additions and 5 deletions
@@ -6,7 +6,7 @@ func Int64SliceMinus(s1, s2 []int64) []int64 {
 	}

 	s2ItemsMap := make(map[int64]bool)
-	var ret []int64
+	ret := make([]int64, 0, len(s1))

 	for i := 0; i < len(s2); i++ {
 		s2ItemsMap[s2[i]] = true
@@ -22,7 +22,7 @@ func Int64SliceMinus(s1, s2 []int64) []int64 {
 }

 func ToUniqueInt64Slice(items []int64) []int64 {
-	var uniqueItems []int64
+	uniqueItems := make([]int64, 0, len(items))
 	itemExistMap := make(map[int64]bool)

 	for i := 0; i < len(items); i++ {