Fix issue patorjk#116: Refactor var to let and const

dmcote-1991 · dmcote-1991 · commit b735d5bc9e2d · 2024-09-20T12:47:14.000-04:00
diff --git a/README.md b/README.md
@@ -18,7 +18,7 @@ http://patorjk.com/games/snake
 ## How to use
 The index.html file should give an idea of how to use this code. However, below you can see how to initialize it into any div within a webpage.
 
-    var mySnakeBoard = new SNAKE.Board( {
+    const mySnakeBoard = new SNAKE.Board( {
                                             boardContainer: "game-area",
                                             fullScreen: false,
                                             width: 580,
diff --git a/index.html b/index.html
@@ -27,17 +27,17 @@
 
 function getTheme () {
     function changeTheme(themeUrl) {
-      var elm = document.getElementById("style");
+      const elm = document.getElementById("style");
       elm && elm.remove();
 
-      var newCss = document.createElement("link");
+      const newCss = document.createElement("link");
       newCss.id = "style";
       newCss.rel = "stylesheet";
       newCss.type = "text/css";
       newCss.href = themeUrl;
       document.head.appendChild(newCss);
     }
-    var index = document.getElementById("select").selectedIndex;
+    const index = document.getElementById("select").selectedIndex;
     switch (index) {
         case 0: 
           changeTheme('css/light-snake.css?' + Math.random());
@@ -70,14 +70,14 @@
 }
 
 if (navigator.onLine && window.location.hostname === 'patorjk.com') {
-    var _gaq = _gaq || [];
+    const _gaq = _gaq || [];
     _gaq.push(['_setAccount', 'UA-3312460-1']);
     _gaq.push(['_trackPageview']);
 
     (function() {
-      var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
+      const ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
       ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
-      var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
+      const s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
     })();
 }
 </script>
@@ -126,7 +126,7 @@ <h2>Select which mode you would like to play in.</h2>
     <script type="text/javascript" src="./js/init.js"></script>
     <script type="text/javascript">
       function go_full_screen() {
-        var elem = document.documentElement;
+        const elem = document.documentElement;
         try {
             if (elem.requestFullscreen) {
               elem.requestFullscreen();
@@ -144,4 +144,4 @@ <h2>Select which mode you would like to play in.</h2>
       }
   </script>
 </body>
-</html>
+</html>
diff --git a/js/init.js b/js/init.js
@@ -1,5 +1,5 @@
-var mySnakeBoard = new SNAKE.Board({
+const mySnakeBoard = new SNAKE.Board({
   boardContainer: "game-area",
   fullScreen: true,
   premoveOnPause: false
-});
+});
diff --git a/js/snake.js b/js/snake.js
