✨ add enum helper

dev/index.php

@@ -54,6 +54,13 @@
 		</style>
 		
 		<script type="text/javascript"><?php
+			foreach(scandir("../src/helper") as $one_file){
+				if(is_file("../src/helper/" . $one_file)){
+					require("../src/helper/" . $one_file);
+					echo("\n");
+				}
+			}
+			
 			foreach(scandir("../src") as $one_file){
 				if(is_file("../src/" . $one_file)){
 					require("../src/" . $one_file);

src/helper/enum.js

@@ -0,0 +1,14 @@
+class Enum {
+	constructor(...keys){
+		keys.forEach((key, i) => {
+			this[key] = i;
+		});
+		Object.freeze(this);
+	}
+	
+	*[Symbol.iterator](){
+		for(let key of Object.keys(this)){
+			yield key;
+		}
+	}
+}