Code linting; fixed #4

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "object.observe",
-  "version": "0.2.3",
+  "version": "0.2.4",
   "homepage": "https://github.com/MaxArt2501/object-observe",
   "authors": [
     "Massimo Artizzu <maxart.x@gmail.com>"

dist/object-observe-lite.js

@@ -1,5 +1,5 @@
 /*!
- * Object.observe "lite" polyfill - v0.2.3
+ * Object.observe "lite" polyfill - v0.2.4
  * by Massimo Artizzu (MaxArt2501)
  * 
  * https://github.com/MaxArt2501/object-observe
@@ -210,7 +210,6 @@ Object.observe || (function(O, A, root) {
             var initial = +new Date,
                 last = initial;
             return function(func) {
-                var now = +new Date;
                 return setTimeout(function() {
                     func((last = +new Date) - initial);
                 }, 17);
@@ -247,7 +246,7 @@ Object.observe || (function(O, A, root) {
          */
         createObjectData = function(object, data) {
             var props = getProps(object),
-                values = [], descs, i = 0,
+                values = [], i = 0,
                 data = {
                     handlers: createMap(),
                     properties: props,
@@ -276,10 +275,8 @@ Object.observe || (function(O, A, root) {
 
             var props, proplen, keys,
                 values = data.values,
-                descs = data.descriptors,
                 i = 0, idx,
-                key, value, ovalue,
-                proto, descr;
+                key, value, ovalue;
 
             props = data.properties.slice();
             proplen = props.length;
@@ -434,7 +431,7 @@ Object.observe || (function(O, A, root) {
          * @param {String[]} acceptList
          */
         setHandler = function(object, data, handler, acceptList) {
-            var hdata = handlers.get(handler), odata;
+            var hdata = handlers.get(handler);
             if (!hdata)
                 handlers.set(handler, hdata = {
                     observed: createMap(),
@@ -490,10 +487,10 @@ Object.observe || (function(O, A, root) {
         if (O.isFrozen && O.isFrozen(handler))
             throw new TypeError("Object.observe cannot deliver to a frozen function object");
 
-        if (arguments.length > 2) {
-            if (!acceptList || typeof acceptList !== "object")
-                throw new TypeError("Object.observe cannot use non-object accept list");
-        } else acceptList = defaultAcceptList;
+        if (typeof acceptList === "undefined")
+            acceptList = defaultAcceptList;
+        else if (!acceptList || typeof acceptList !== "object")
+            throw new TypeError("Third argument to Object.observe must be an array of strings.");
 
         doObserve(object, handler, acceptList);