feat: add DeleteValue for SinglyLink

datastructure/link/singlylink.go

@@ -3,6 +3,7 @@ package datastructure
 import (
 	"errors"
 	"fmt"
+	"reflect"
 
 	"github.com/duke-git/lancet/v2/datastructure"
 )
@@ -144,6 +145,27 @@ func (link *SinglyLink[T]) DeleteAt(index int) error {
 	return errors.New("delete error")
 }
 
+// DeleteValue delete value in singly linklist
+func (link *SinglyLink[T]) DeleteValue(value T) {
+	if link.Head == nil {
+		return
+	}
+	dummyHead := datastructure.NewLinkNode(value)
+	dummyHead.Next = link.Head
+	current := dummyHead
+
+	for current.Next != nil {
+		if reflect.DeepEqual(current.Next.Value, value) {
+			current.Next = current.Next.Next
+			link.length--
+		} else {
+			current = current.Next
+		}
+	}
+
+	link.Head = dummyHead.Next
+}
+
 // Reverse the linked list
 func (link *SinglyLink[T]) Reverse() {
 	var pre, next *datastructure.LinkNode[T]

datastructure/link/singlylink_test.go

@@ -111,6 +111,24 @@ func TestSinglyLink_DeleteAtTail(t *testing.T) {
 	assert.Equal(expected, values)
 }
 
+func TestSinglyLink_DeleteValue(t *testing.T) {
+	assert := internal.NewAssert(t, "TestSinglyLink_DeleteValue")
+
+	link := NewSinglyLink[int]()
+
+	link.InsertAtTail(1)
+	link.InsertAtTail(2)
+	link.InsertAtTail(2)
+	link.InsertAtTail(3)
+	link.InsertAtTail(4)
+
+	link.DeleteValue(2)
+	assert.Equal([]int{1, 3, 4}, link.Values())
+
+	link.DeleteValue(1)
+	assert.Equal([]int{3, 4}, link.Values())
+}
+
 func TestSinglyLink_DeleteAt(t *testing.T) {
 	assert := internal.NewAssert(t, "TestSinglyLink_DeleteAt")