23 fix only whitespaces + conditional attributes

backend/service/functions/string.go

@@ -1,15 +1,13 @@
 package functions
 
-import "unicode"
+import "strings"
 
-// check if course is empty or contains only whitespaces
+// check if string is empty or contains only whitespaces
 func OnlyWhitespace(word string) bool {
-	for _, letter := range word {
-		if !unicode.IsSpace(letter) || !(letter == int32(160)) {
-			return false
-		}
+	if len(strings.TrimSpace(word)) == 0 {
+		return true
 	}
-	return true
+	return false
 }
 
 func Contains(s []string, e string) bool {