feature: added optional

pkg/collections/array_list/array_list_methods.go

@@ -4,6 +4,8 @@ import (
 	"errors"
 	"fmt"
 	"slices"
+
+	"git.tswf.io/incredible-go/incredible-go-core/pkg/container/optional"
 )
 
 func (self *ArrayList[T]) Add(element T) {
@@ -190,3 +192,19 @@ func (self *ArrayList[T]) ToSlice() []T {
 	result := slices.Clone(self.content)[:self.size]
 	return result
 }
+
+func (self *ArrayList[T]) Find(filter func(T) bool) *optional.Optional[T] {
+	for index, value := range self.content {
+		if index >= self.size {
+			break
+		}
+
+		passed := filter(value)
+
+		if passed {
+			return optional.OfAny(value)
+		}
+	}
+
+	return optional.Empty[T]()
+}