Refactoring codes for removing buffer size options. An some other changes...

Former-commit-id: 10b57cc1a27446ade3c444217341e9651e89cdce

pkg/goutils/goutils.go

@@ -13,6 +13,7 @@ import (
 	"github.com/barkimedes/go-deepcopy"
 )
 
+
 // InterfaceToInt converts a interface{} to an integer value if possible.
 // If not a "NotAnInteger" error is returned via the err
 // return value and val is set to 0.
@@ -302,15 +303,6 @@ func ReadLines(path string) (lines []string, err error) {
 	return
 }
 
-func Contains[T comparable](arr []T, x T) bool {
-	for _, v := range arr {
-		if v == x {
-			return true
-		}
-	}
-	return false
-}
-
 func AtomicCounter(initial ...int) func() int {
 	counterMutex := sync.Mutex{}
 	counter := 0

pkg/goutils/slices.go

@@ -0,0 +1,24 @@
+package goutils
+
+
+func Contains[T comparable](arr []T, x T) bool {
+	for _, v := range arr {
+		if v == x {
+			return true
+		}
+	}
+	return false
+}
+
+func LookFor[T comparable](arr []T, x T) int {
+	for i, v := range arr {
+		if v == x {
+			return i
+		}
+	}
+	return -1
+}
+
+func RemoveIndex[T comparable](s []T, index int) []T {
+    return append(s[:index], s[index+1:]...)
+}