From 6a42a23ef56a230ce6c8023898de575e02c1f640 Mon Sep 17 00:00:00 2001
From: xing <fthvgb1>
Date: Sat, 24 Sep 2022 23:21:09 +0800
Subject: [PATCH] =?UTF-8?q?=E5=9B=9E=E6=BB=9Afilter=EF=BC=8C=E4=B8=8D?=
 =?UTF-8?q?=E7=84=B6=E4=BC=9A=E6=94=B9=E5=8F=98=E5=8E=9F=E5=80=BC?=
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---
 helper/func.go | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/helper/func.go b/helper/func.go
index ef6e0a5..2d36e0d 100644
--- a/helper/func.go
+++ b/helper/func.go
@@ -191,14 +191,13 @@ func SliceMap[T, R any](arr []T, fn func(T) R) []R {
 }
 
 func SliceFilter[T any](arr []T, fn func(T) bool) []T {
-	j := 0
+	var r []T
 	for _, t := range arr {
 		if fn(t) {
-			arr[j] = t
-			j++
+			r = append(r, t)
 		}
 	}
-	return arr[:j]
+	return r
 }
 
 func SliceReduce[T, R any](arr []T, fn func(T, R) R, r R) R {