namespace adas_core.Domain.Utils; public static class StringEx { public static bool IsEmpty(this string source) { return string.IsNullOrEmpty(source); } public static bool IsEmptyOrWhiteSpace(this string source) { return string.IsNullOrWhiteSpace(source); } public static string SubstringAfter(this string source, string value) { if (string.IsNullOrEmpty(source) || string.IsNullOrEmpty(value)) return source; var index = source.IndexOf(value, StringComparison.Ordinal); return index >= 0 ? source.Substring(index + value.Length) : source; } public static string SubstringBefore(this string source, string value) { if (string.IsNullOrEmpty(source) || string.IsNullOrEmpty(value)) return source; var index = source.IndexOf(value, StringComparison.Ordinal); return index >= 0 ? source.Substring(0, index) : source; } }