diff --git a/Gruntfile.js b/Gruntfile.js
index 19f0f251e..2317544ad 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -7,7 +7,7 @@ module.exports = function( grunt ) {
 			"dist/jquery.min.map",
 			"dist/jquery.min.js"
 		],
-    gzip = require("gzip-js"),
+		gzip = require("gzip-js"),
 		readOptionalJSON = function( filepath ) {
 			var data = {};
 			try {
diff --git a/src/.jshintrc b/src/.jshintrc
index b5b056f25..ef8723031 100644
--- a/src/.jshintrc
+++ b/src/.jshintrc
@@ -11,12 +11,11 @@
 	"maxerr": 100,
 
 	"eqnull": true,
-	"evil": true,
 	"sub": true,
 	"boss": true,
 
 	"browser": true,
-	"wsh": true,
+	"es5": true,
 
 	"globals": {
 		"jQuery": true,
diff --git a/src/core.js b/src/core.js
index 66c60774b..67fa24c77 100644
--- a/src/core.js
+++ b/src/core.js
@@ -404,8 +404,7 @@ jQuery.extend({
 	isArray: Array.isArray,
 
 	isWindow: function( obj ) {
-		/* jshint eqeqeq: false */
-		return obj != null && obj == obj.window;
+		return obj != null && obj === obj.window;
 	},
 
 	isNumeric: function( obj ) {
diff --git a/src/effects.js b/src/effects.js
index c0f558aec..96370920b 100644
--- a/src/effects.js
+++ b/src/effects.js
@@ -242,7 +242,7 @@ jQuery.Animation = jQuery.extend( Animation, {
 });
 
 function defaultPrefilter( elem, props, opts ) {
-	/*jshint validthis:true */
+	/* jshint validthis: true */
 	var index, prop, value, length, dataShow, toggle, tween, hooks, oldfire,
 		anim = this,
 		style = elem.style,
diff --git a/src/event.js b/src/event.js
index 33c8194c3..a9620e241 100644
--- a/src/event.js
+++ b/src/event.js
@@ -402,9 +402,7 @@ jQuery.event = {
 		// Avoid non-left-click bubbling in Firefox (#3861)
 		if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
 
-			/* jshint eqeqeq: false */
-			for ( ; cur != this; cur = cur.parentNode || this ) {
-				/* jshint eqeqeq: true */
+			for ( ; cur !== this; cur = cur.parentNode || this ) {
 
 				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
 				if ( cur.disabled !== true || event.type !== "click" ) {