Add .jshintrc, and use the "use strict" directive

.jshintrc's otion-set is a personal choice, merely a suggestion.
Beside that, it includes some common globals for specific browsers, so
there's no need to set the globals in every .js file.

In order to force strict coding, "use strict" directive was added into
every .js file.

src/.jshintrc

@@ -0,0 +1,20 @@
+{
+	"browser": true,
+	"devel": true,
+	"esnext": true,
+	"globalstrict": true,
+	"undef": true,
+	"unused": true,
+	"nonew": false,
+	"sub": true,
+	"boss": true,
+	"laxbreak": true,
+	"validthis": true,
+	"newcap": false,
+	"-W058": true, // suppress "Missing '()' invoking a constructor" message
+	"globals": {
+		"chrome": false,
+		"safari": false,
+		"Components": false // global variable in Firefox
+	}
+}

src/js/1p-filters.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, vAPI, uDom */
+/* global vAPI, uDom */
+'use strict';
 
 /******************************************************************************/
 

src/js/3p-filters.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global vAPI, uDom */
+/* global µBlock, vAPI, uDom */
+'use strict';
 
 /******************************************************************************/
 

src/js/about.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global µBlock, uDom */
+/* global µBlock, vAPI, uDom */
+'use strict';
 
 /******************************************************************************/
 

src/js/asset-viewer.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, vAPI, uDom */
+/* global vAPI, uDom */
+'use strict';
 
 /******************************************************************************/
 

src/js/assets.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, µBlock, YaMD5 */
+/* global µBlock, vAPI, YaMD5 */
+'use strict';
 
 /*******************************************************************************
 

src/js/async.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global µBlock */
+/* global µBlock, vAPI */
+'use strict';
 
 /******************************************************************************/
 

src/js/background.js

@@ -19,7 +19,9 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome */
+/* global vAPI */
+/* exported µBlock */
+'use strict';
 
 /******************************************************************************/
 
@@ -30,7 +32,7 @@ var µBlock = (function() {
 var oneSecond = 1000;
 var oneMinute = 60 * oneSecond;
 var oneHour = 60 * oneMinute;
-var oneDay = 24 * oneHour;
+// var oneDay = 24 * oneHour;
 
 /******************************************************************************/
 

src/js/contentscript-end.js

@@ -19,18 +19,24 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, vAPI */
+/* global vAPI */
+'use strict';
+
+/******************************************************************************/
 
 // Injected into content pages
 
+/******************************************************************************/
+
 // because Safari
 if (location.protocol !== "http:" && location.protocol !== "https:") {
     throw "uBlock> contentscript-end.js > Skipping page... " + location.protocol + location.host;
 }
 
+/******************************************************************************/
+
 var messager = vAPI.messaging.channel('contentscript-end.js');
 
-/******************************************************************************/
 /******************************************************************************/
 
 // ABP cosmetic filters

src/js/contentscript-start.js

@@ -20,7 +20,10 @@
 */
 
 /* jshint multistr: true */
-/* global chrome */
+/* global vAPI */
+'use strict';
+
+/******************************************************************************/
 
 // Injected into content pages
 

src/js/contextmenu.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, µBlock */
+/* global vAPI, µBlock */
+'use strict';
 
 /******************************************************************************/
 

src/js/cosmetic-filtering.js

@@ -21,6 +21,7 @@
 
 /* jshint bitwise: false */
 /* global µBlock */
+'use strict';
 
 /******************************************************************************/
 

src/js/dashboard-common.js

@@ -19,6 +19,9 @@
     Home: https://github.com/gorhill/uBlock
 */
 
+/* global uDom */
+'use strict';
+
 /******************************************************************************/
 
 uDom.onLoad(function() {

src/js/dashboard.js

@@ -19,6 +19,9 @@
     Home: https://github.com/gorhill/uBlock
 */
 
+/* global uDom */
+'use strict';
+
 /******************************************************************************/
 
 (function() {

src/js/element-picker.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global CSS, chrome, vAPI */
+/* global messager, CSS */
+'use strict';
 
 /******************************************************************************/
 /******************************************************************************/
@@ -107,7 +108,7 @@
 		};
 	}
 
-}(window));
+}(this));
 
 /******************************************************************************/
 /******************************************************************************/

src/js/i18n.js

@@ -19,6 +19,11 @@
     Home: https://github.com/gorhill/uBlock
 */
 
+/* global vAPI, uDom */
+'use strict';
+
+/******************************************************************************/
+
 // Helper to deal with the i18n'ing of HTML files.
 
 uDom.onLoad(function() {

src/js/js-loader.js

@@ -1,4 +1,6 @@
 (function() {
+	'use strict';
+
 	document.body.style.display = "none";
 	document.addEventListener("DOMContentLoaded", function onDOMReady(e) {
 		document.removeEventListener(e.type, onDOMReady, false);

src/js/liquid-dict.js

@@ -21,6 +21,7 @@
 
 /* jshint bitwise: false */
 /* global µBlock */
+'use strict';
 
 /******************************************************************************/
 
@@ -60,16 +61,16 @@ var meltBucket = function(ldict, len, bucket) {
 
 /******************************************************************************/
 
-var melt = function(ldict) {
+// var melt = function(ldict) {
-    var buckets = ldict.dict;
+//     var buckets = ldict.dict;
-    var bucket;
+//     var bucket;
-    for ( var key in buckets ) {
+//     for ( var key in buckets ) {
-        bucket = buckets[key];
+//         bucket = buckets[key];
-        if ( typeof bucket === 'string' ) {
+//         if ( typeof bucket === 'string' ) {
-            buckets[key] = meltBucket(ldict, key.charCodeAt(0) & 0xFF, bucket);
+//             buckets[key] = meltBucket(ldict, key.charCodeAt(0) & 0xFF, bucket);
-        }
+//         }
-    }
+//     }
-};
+// };
 
 /******************************************************************************/
 

src/js/messaging.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global vAPI, µBlock, YaMD5 */
+/* global µBlock, vAPI, YaMD5 */
+'use strict';
 
 /******************************************************************************/
 

src/js/mirrors.js

@@ -20,7 +20,8 @@
 */
 
 /* jshint bitwise: false */
-/* global chrome, YaMD5, µBlock */
+/* global µBlock, vAPI, YaMD5 */
+'use strict';
 
 /******************************************************************************/
 

src/js/net-filtering.js

@@ -19,8 +19,9 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* jshint esnext: true, bitwise: false */
+/* jshint bitwise: false */
 /* global µBlock */
+'use strict';
 
 /******************************************************************************/
 

src/js/pagestore.js

@@ -20,7 +20,8 @@
 */
 
 /* jshint bitwise: false */
-/* global µBlock */
+/* global µBlock, vAPI */
+'use strict';
 
 /*******************************************************************************
 

src/js/popup.js

@@ -20,8 +20,8 @@
 */
 
 /* global vAPI, uDom */
+'use strict';
 
-/******************************************************************************/
 /******************************************************************************/
 
 (function() {

src/js/profiler.js

@@ -19,6 +19,9 @@
     Home: https://github.com/gorhill/uBlock
 */
 
+/* exported quickProfiler */
+'use strict';
+
 /******************************************************************************/
 
 var quickProfiler = (function() {

src/js/settings.js

@@ -20,6 +20,7 @@
 */
 
 /* global vAPI, uDom */
+'use strict';
 
 /******************************************************************************/
 

src/js/start.js

@@ -20,6 +20,7 @@
 */
 
 /* global µBlock */
+'use strict';
 
 /******************************************************************************/
 

src/js/stats.js

@@ -21,6 +21,7 @@
 
 /* jshint bitwise: false */
 /* global uDom, vAPI */
+'use strict';
 
 /******************************************************************************/
 

src/js/storage.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, µBlock, punycode, publicSuffixList */
+/* global µBlock, vAPI, punycode, publicSuffixList */
+'use strict';
 
 /******************************************************************************/
 

src/js/tab.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global µBlock */
+/* global µBlock, vAPI */
+'use strict';
 
 /******************************************************************************/
 

src/js/traffic.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global µBlock */
+/* global µBlock, vAPI */
+'use strict';
 
 /******************************************************************************/
 

src/js/ublock.js

@@ -20,6 +20,7 @@
 */
 
 /* global µBlock */
+'use strict';
 
 /******************************************************************************/
 

src/js/udom.js

@@ -20,6 +20,10 @@
 */
 
 /******************************************************************************/
+
+/* exported uDom */
+'use strict';
+
 /******************************************************************************/
 
 // It's just a silly, minimalist DOM framework: this allows me to not rely

src/js/uritools.js

@@ -20,6 +20,7 @@
 */
 
 /* global µBlock, publicSuffixList */
+'use strict';
 
 /*******************************************************************************
 
@@ -33,7 +34,7 @@ Naming convention from https://en.wikipedia.org/wiki/URI_scheme#Examples
 
 // This will inserted as a module in the µBlock object.
 
-µBlock = typeof µBlock === "undefined" ? {} : µBlock;
+var µBlock = typeof µBlock === "undefined" ? {} : µBlock;
 
 µBlock.URI = (function() {
 

src/js/utils.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, µBlock */
+/* global µBlock */
+'use strict';
 
 /******************************************************************************/
 

src/js/vapi-client.js

@@ -1,5 +1,4 @@
 // for non background pages
-/* global chrome, Components, safari */
 
 (function() {
 'use strict';

src/js/vapi-common.js

@@ -1,5 +1,4 @@
 // only for background and other extension pages
-/* global chrome, Components, BeforeLoadEvent */
 
 (function() {
 'use strict';

src/js/whitelist.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, vAPI, uDom */
+/* global vAPI, uDom */
+'use strict';
 
 /******************************************************************************/
 

src/js/xal.js

@@ -19,7 +19,8 @@
     Home: https://github.com/gorhill/uBlock
 */
 
-/* global chrome, µBlock */
+/* global µBlock, vAPI */
+'use strict';
 
 /******************************************************************************/