lint

threejs/lessons/resources/lesson.js

@@ -1,20 +1,12 @@
 <!-- Licensed under a BSD license. See license.html for license -->
-(function($){
-var log = function(msg) {
-  return;
-  if (window.dump) {
-    dump(msg + "\n");
-  }
-  if (window.console && window.console.log) {
-    console.log(msg);
-  }
-};
+'use strict';
 
+(function($){
 function getQueryParams() {
-  var params = {};
+  const params = {};
   if (window.location.search) {
-    window.location.search.substring(1).split("&").forEach(function(pair) {
-      var keyValue = pair.split("=").map(function (kv) {
+    window.location.search.substring(1).split('&').forEach(function(pair) {
+      const keyValue = pair.split('=').map(function(kv) {
         return decodeURIComponent(kv);
       });
       params[keyValue[0]] = keyValue[1];
@@ -24,10 +16,8 @@ function getQueryParams() {
 }
 
 $(document).ready(function($){
-  var g_imgs = { };
   var linkImgs = function(bigHref) {
     return function() {
-      var src = this.src;
       var a = document.createElement('a');
       a.href = bigHref;
       a.title = this.alt;
@@ -35,7 +25,7 @@ $(document).ready(function($){
       a.setAttribute('align', this.align);
       this.setAttribute('align', '');
       this.className = '';
-      this.style.border = "0px";
+      this.style.border = '0px';
       return a;
     };
   };
@@ -46,28 +36,28 @@ $(document).ready(function($){
     };
   };
   var linkBigImgs = function() {
-    var src = $(this).attr("big");
+    var src = $(this).attr('big');
     return linkImgs(src);
   };
   $('img[big$=".jpg"]').wrap(linkBigImgs);
-  $('img[src$="-sm.jpg"]').wrap(linkSmallImgs(".jpg"));
-  $('img[src$="-sm.gif"]').wrap(linkSmallImgs(".gif"));
-  $('img[src$="-sm.png"]').wrap(linkSmallImgs(".png"));
+  $('img[src$="-sm.jpg"]').wrap(linkSmallImgs('.jpg'));
+  $('img[src$="-sm.gif"]').wrap(linkSmallImgs('.gif'));
+  $('img[src$="-sm.png"]').wrap(linkSmallImgs('.png'));
   $('pre>code')
-     .unwrap()
-     .replaceWith(function() {
-       return $('<pre class="prettyprint showlinemods">' + this.innerHTML + '</pre>')
-     });
+    .unwrap()
+    .replaceWith(function() {
+      return $('<pre class="prettyprint showlinemods">' + this.innerHTML + '</pre>');
+    });
   if (window.prettyPrint) {
     window.prettyPrint();
   }
 
   var params = getQueryParams();
   if (params.doubleSpace || params.doublespace) {
-    document.body.className = document.body.className + " doubleSpace";
+    document.body.className = document.body.className + ' doubleSpace';
   }
 
-  $(".language").on('change', function() {
+  $('.language').on('change', function() {
     window.location.href = this.value;
   });