[add] Lobby 按鈕功能

assets/Script/Engine/CatanEngine/CSharp/String.ts

@@ -1,16 +1,25 @@
-interface StringConstructor {  
+interface StringConstructor {
     IsNullOrEmpty: (value: string) => boolean;
     Format: (format: string, ...args: any[]) => string;
+    IsNullOrWhiteSpace: (input: string) => boolean;
 }
 
-String.IsNullOrEmpty = function (value: string): boolean {  
-    return value === undefined || value === null || value.trim() === '';
+String.IsNullOrEmpty = function (value: string): boolean {
+    return value === undefined || value === null || value.trim() === "";
 };
 
 String.Format = function (format: string, ...args: any[]): string {
     return format.replace(/{(\d+)}/g, (match, index) => {
         let value = args[index];
-        if (value === null || value === undefined) return '';
-        return '' + value;
+        if (value === null || value === undefined) { return ""; }
+        return "" + value;
     });
-}
+};
+
+
+String.IsNullOrWhiteSpace = function (input: string): boolean {
+    if (typeof input === "undefined" || input == null) {
+        return true;
+    }
+    return input.replace(/\s/g, "").length < 1;
+};