feature(strings): add Func

2025-10-05 07:57:02 +08:00 · 2022-08-05 16:20:14 +08:00
parent 70decf78e6
commit 2b15311f1e
2 changed files with 60 additions and 48 deletions
--- a/strings/strings_unexportable.go
+++ b/strings/strings_unexportable.go
@@ -0,0 +1,21 @@
+package strings
+
+func isUpper(s string) bool {
+	for i := range s {
+		c := s[i]
+		if c >= 'a' && c <= 'z' {
+			return false
+		}
+	}
+	return true
+}
+
+func isLower(s string) bool {
+	for i := range s {
+		c := s[i]
+		if c >= 'A' && c <= 'Z' {
+			return false
+		}
+	}
+	return true
+}