diff --git a/zarray/slice.go b/zarray/slice.go
index 463a9fd..e73b7c6 100644
--- a/zarray/slice.go
+++ b/zarray/slice.go
@@ -9,6 +9,13 @@ import (
 	"github.com/sohaha/zlsgo/zstring"
 )
 
+// CopySlice copy a slice
+func CopySlice[T any](l []T) []T {
+	nl := make([]T, len(l))
+	copy(nl, l)
+	return nl
+}
+
 // Rand A random eents
 func Rand[T any](collection []T) T {
 	l := len(collection)
@@ -16,6 +23,7 @@ func Rand[T any](collection []T) T {
 		var zero T
 		return zero
 	}
+
 	i := zstring.RandInt(0, l-1)
 	return collection[i]
 }
@@ -33,10 +41,8 @@ func Map[T any, R any](collection []T, iteratee func(int, T) R) []R {
 
 // Shuffle creates a slice of shuffled values
 func Shuffle[T any](collection []T) []T {
-	l := len(collection)
-	n := make([]T, l)
-	copy(n, collection)
-	rand.Shuffle(l, func(i, j int) {
+	n := CopySlice(collection)
+	rand.Shuffle(len(n), func(i, j int) {
 		n[i], n[j] = n[j], n[i]
 	})
 
@@ -45,9 +51,8 @@ func Shuffle[T any](collection []T) []T {
 
 // Reverse creates a slice of reversed values
 func Reverse[T any](collection []T) []T {
-	l := len(collection)
-	n := make([]T, l)
-	copy(n, collection)
+	n := CopySlice(collection)
+	l := len(n)
 	for i := 0; i < l/2; i++ {
 		n[i], n[l-i-1] = n[l-i-1], n[i]
 	}
@@ -57,15 +62,18 @@ func Reverse[T any](collection []T) []T {
 
 // Filter iterates over eents of collection
 func Filter[T any](slice []T, predicate func(index int, item T) bool) []T {
-	l := len(slice)
-	res := make([]T, 0, l)
-	for i := 0; i < l; i++ {
-		v := slice[i]
-		if predicate(i, v) {
-			res = append(res, v)
+	slice = CopySlice(slice)
+
+	j := 0
+	for i := range slice {
+		if !predicate(i, slice[i]) {
+			continue
 		}
+		slice[j] = slice[i]
+		j++
 	}
-	return res
+
+	return slice[:j:j]
 }
 
 // Contains returns true if an eent is present in a collection
@@ -93,19 +101,15 @@ func Find[T any](collection []T, predicate func(index int, item T) bool) (res T,
 
 // Unique returns a duplicate-free version of an array
 func Unique[T comparable](collection []T) []T {
-	res := make([]T, 0, len(collection))
 	repeat := make(map[T]struct{}, len(collection))
 
-	for _, item := range collection {
+	return Filter(collection, func(_ int, item T) bool {
 		if _, ok := repeat[item]; ok {
-			continue
+			return false
 		}
-
 		repeat[item] = struct{}{}
-		res = append(res, item)
-	}
-
-	return res
+		return true
+	})
 }
 
 func Diff[T comparable](list1 []T, list2 []T) ([]T, []T) {
diff --git a/znet/gzip/gzip.go b/znet/gzip/gzip.go
index 23bcc99..771c83b 100644
--- a/znet/gzip/gzip.go
+++ b/znet/gzip/gzip.go
@@ -27,7 +27,6 @@ func New(conf Config) znet.HandlerFunc {
 		} else {
 			c.Next()
 			p := c.PrevContent()
-
 			if len(p.Content) < conf.MinContentLength {
 				return
 			}
diff --git a/znet/render.go b/znet/render.go
index e7fb8a1..9e7fb66 100644
--- a/znet/render.go
+++ b/znet/render.go
@@ -72,10 +72,12 @@ var (
 )
 
 func (c *Context) renderProcessing(code int32, r render) {
-	if c.stopHandle.Load() && c.prevData.Code.Load() != 0 {
-		return
+	// if c.stopHandle.Load() && c.prevData.Code.Load() != 0 {
+	// 	return
+	// }
+	if code != 0 {
+		c.prevData.Code.Store(code)
 	}
-	c.prevData.Code.Store(code)
 	c.mu.Lock()
 	c.render = r
 	c.mu.Unlock()
@@ -254,6 +256,10 @@ func (c *Context) Abort(code ...int32) {
 	}
 }
 
+func (c *Context) IsAbort() bool {
+	return c.stopHandle.Load()
+}
+
 // Redirect Redirect
 func (c *Context) Redirect(link string, statusCode ...int32) {
 	c.Writer.Header().Set("Location", c.CompletionLink(link))
diff --git a/znet/web_test.go b/znet/web_test.go
index 0906f95..a889f6e 100644
--- a/znet/web_test.go
+++ b/znet/web_test.go
@@ -417,6 +417,10 @@ func TestPost(tt *testing.T) {
 
 	w = newRequest(r, "POST", "/Post2", "/Post2", func(c *Context) {
 		c.String(200, "ok")
+	}, func(c *Context) {
+		T.Equal(false, c.IsAbort())
+		c.Next()
+		T.Equal(true, c.IsAbort())
 	},
 		func(c *Context) {
 			c.Abort(222)
diff --git a/ztime/cron/cron_test.go b/ztime/cron/cron_test.go
index bb1ccda..e484334 100644
--- a/ztime/cron/cron_test.go
+++ b/ztime/cron/cron_test.go
@@ -71,7 +71,7 @@ func TestRun(tt *testing.T) {
 		t.Equal(true, time.Now().UnixNano() > now.UnixNano())
 		g.Done()
 	})
-	cron.Run()
+	cron.Run(false)
 	g.Wait()
 	cron.Stop()
 	ii := atomic.LoadInt64(&i)
diff --git a/zutil/options.go b/zutil/options.go
new file mode 100644
index 0000000..271d40a
--- /dev/null
+++ b/zutil/options.go
@@ -0,0 +1,12 @@
+//go:build go1.18
+// +build go1.18
+
+package zutil
+
+// Optional Optional parameter
+func Optional[T interface{}](o T, fn ...func(*T)) T {
+	for _, f := range fn {
+		f(&o)
+	}
+	return o
+}
diff --git a/zutil/options_test.go b/zutil/options_test.go
new file mode 100644
index 0000000..4c864a2
--- /dev/null
+++ b/zutil/options_test.go
@@ -0,0 +1,33 @@
+//go:build go1.18
+// +build go1.18
+
+package zutil_test
+
+import (
+	"testing"
+
+	"github.com/sohaha/zlsgo"
+	"github.com/sohaha/zlsgo/zutil"
+)
+
+func TestOptional(t *testing.T) {
+	tt := zlsgo.NewTest(t)
+
+	o := zutil.Optional(TestSt{Name: "test"})
+	tt.Equal("test", o.Name)
+	tt.Equal(0, o.I)
+
+	o = zutil.Optional(TestSt{Name: "test2"}, func(o *TestSt) {
+		o.I = 1
+	}, func(ts *TestSt) {
+		ts.I = ts.I + 1
+	})
+	tt.Equal("test2", o.Name)
+	tt.Equal(2, o.I)
+
+	o2 := zutil.Optional(&TestSt{Name: "test"}, func(ts **TestSt) {
+		(*ts).I = 1
+	})
+	tt.Equal("test", o2.Name)
+	tt.Equal(1, o2.I)
+}