diff --git a/benchmark/benchmarks-lite.js b/benchmark/benchmarks-lite.js
index 0854f56..52a2663 100644
--- a/benchmark/benchmarks-lite.js
+++ b/benchmark/benchmarks-lite.js
@@ -16,8 +16,6 @@ root.generateObject = function(numberOfProperties) {
     return object;
 }
 
-function noop() {}
-
 var padspace = (new Array(81)).join(" ");
 function padL(text, length) {
     return (padspace + text).slice(-length);
diff --git a/benchmark/benchmarks.js b/benchmark/benchmarks.js
index b63599f..122f060 100644
--- a/benchmark/benchmarks.js
+++ b/benchmark/benchmarks.js
@@ -16,8 +16,6 @@ root.generateObject = function(numberOfProperties) {
     return object;
 }
 
-function noop() {}
-
 var padspace = (new Array(81)).join(" ");
 function padL(text, length) {
     return (padspace + text).slice(-length);
diff --git a/benchmark/index-lite.html b/benchmark/index-lite.html
index 0357b21..a4a88d6 100644
--- a/benchmark/index-lite.html
+++ b/benchmark/index-lite.html
@@ -2,7 +2,7 @@
 <html>
     <head>
         <meta charset="utf-8">
-        <title>Object.observe polyfill tests</title>
+        <title>Object.observe polyfill benchmarks</title>
         <style>
         body {
             font-family: Arial, Helvetica, sans-serif;
diff --git a/benchmark/index.html b/benchmark/index.html
index bbe0776..d0acbf8 100644
--- a/benchmark/index.html
+++ b/benchmark/index.html
@@ -2,7 +2,7 @@
 <html>
     <head>
         <meta charset="utf-8">
-        <title>Object.observe polyfill tests</title>
+        <title>Object.observe polyfill benchmarks</title>
         <style>
         body {
             font-family: Arial, Helvetica, sans-serif;
diff --git a/dist/object-observe-lite.js b/dist/object-observe-lite.js
index e2beb0d..4375ce5 100644
--- a/dist/object-observe-lite.js
+++ b/dist/object-observe-lite.js
@@ -1,9 +1,9 @@
 /*!
  * Object.observe "lite" polyfill - v0.2.4
  * by Massimo Artizzu (MaxArt2501)
- * 
+ *
  * https://github.com/MaxArt2501/object-observe
- * 
+ *
  * Licensed under the MIT License
  * See LICENSE for details
  */
@@ -58,7 +58,7 @@
  * @returns {ChangeRecord|undefined}
  */
 
-Object.observe || (function(O, A, root) {
+Object.observe || (function(O, A, root, _undefined) {
     "use strict";
 
         /**
@@ -110,7 +110,7 @@ Object.observe || (function(O, A, root) {
          * @function createMap
          * @returns {Map}
          */
-        createMap = typeof root.Map === "undefined" || !Map.prototype.forEach ? function() {
+        createMap = root.Map === _undefined || !Map.prototype.forEach ? function() {
             // Lightweight shim of Map. Lacks clear(), entries(), keys() and
             // values() (the last 3 not supported by IE11, so can't use them),
             // it doesn't handle the constructor's argument (like IE11) and of
@@ -232,7 +232,7 @@ Object.observe || (function(O, A, root) {
             else {
                 data = createObjectData(object);
                 setHandler(object, data, handler, acceptList);
-                
+
                 if (observed.size === 1)
                     // Let the observation begin!
                     nextFrame(runGlobalLoop);
@@ -300,7 +300,7 @@ Object.observe || (function(O, A, root) {
                     ovalue = values[idx];
                     props[idx] = null;
                     proplen--;
-                    if (ovalue === value ? ovalue === 0 && 1/ovalue !== 1/value 
+                    if (ovalue === value ? ovalue === 0 && 1/ovalue !== 1/value
                             : ovalue === ovalue || value === value) {
                         addChangeRecord(object, data, {
                             name: key,
@@ -405,7 +405,8 @@ Object.observe || (function(O, A, root) {
                     // If there's no data, the object has been unobserved
                     var data = observed.get(object),
                         prop, changeRecord,
-                        result = func.call(arguments[2]);
+                        thisObj = arguments[2],
+                        result = thisObj === _undefined ? func() : func.call(thisObj);
 
                     data && performPropertyChecks(data, object, changeType);
 
@@ -487,7 +488,7 @@ 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 (typeof acceptList === "undefined")
+        if (acceptList === _undefined)
             acceptList = defaultAcceptList;
         else if (!acceptList || typeof acceptList !== "object")
             throw new TypeError("Third argument to Object.observe must be an array of strings.");
@@ -572,4 +573,4 @@ Object.observe || (function(O, A, root) {
         }
     };
 
-})(Object, Array, this);
\ No newline at end of file
+})(Object, Array, this);
diff --git a/dist/object-observe-lite.min.js b/dist/object-observe-lite.min.js
index a16b957..5ad7153 100644
--- a/dist/object-observe-lite.min.js
+++ b/dist/object-observe-lite.min.js
@@ -1,2 +1,2 @@
-Object.observe||function(e,t,n){"use strict";var r,o,i=["add","update","delete","reconfigure","setPrototype","preventExtensions"],c=t.isArray||function(e){return function(t){return"[object Array]"===e.call(t)}}(e.prototype.toString),a=t.prototype.indexOf?t.indexOf||function(e,n,r){return t.prototype.indexOf.call(e,n,r)}:function(e,t,n){for(var r=n||0;r<e.length;r++)if(e[r]===t)return r;return-1},f="undefined"!=typeof n.Map&&Map.prototype.forEach?function(){return new Map}:function(){var e=[],t=[];return{size:0,has:function(t){return a(e,t)>-1},get:function(n){return t[a(e,n)]},set:function(n,r){var o=a(e,n);-1===o?(e.push(n),t.push(r),this.size++):t[o]=r},"delete":function(n){var r=a(e,n);r>-1&&(e.splice(r,1),t.splice(r,1),this.size--)},forEach:function(n){for(var r=0;r<e.length;r++)n.call(arguments[1],t[r],e[r],this)}}},s=e.getOwnPropertyNames?function(){var t=e.getOwnPropertyNames;try{arguments.callee}catch(n){var r=(t(a).join(" ")+" ").replace(/prototype |length |name /g,"").slice(0,-1).split(" ");r.length&&(t=function(t){var n=e.getOwnPropertyNames(t);if("function"==typeof t)for(var o,i=0;i<r.length;)(o=a(n,r[i++]))>-1&&n.splice(o,1);return n})}return t}():function(t){var n,r,o=[];if("hasOwnProperty"in t)for(n in t)t.hasOwnProperty(n)&&o.push(n);else{r=e.hasOwnProperty;for(n in t)r.call(t,n)&&o.push(n)}return c(t)&&o.push("length"),o},u=n.requestAnimationFrame||n.webkitRequestAnimationFrame||function(){var e=+new Date,t=e;return function(n){return setTimeout(function(){n((t=+new Date)-e)},17)}}(),p=function(e,t,n){var o=r.get(e);o?b(e,o,t,n):(o=l(e),b(e,o,t,n),1===r.size&&u(d))},l=function(e,t){for(var n=s(e),o=[],i=0,t={handlers:f(),properties:n,values:o,notifier:y(e,t)};i<n.length;)o[i]=e[n[i++]];return r.set(e,t),t},h=function(e,t,n){if(e.handlers.size){var r,o,i,c,f,u,p,l=e.values,h=0;for(r=e.properties.slice(),o=r.length,i=s(t);h<i.length;)f=i[h++],c=a(r,f),u=t[f],-1===c?(g(t,e,{name:f,type:"add",object:t},n),e.properties.push(f),l.push(u)):(p=l[c],r[c]=null,o--,(p===u?0===p&&1/p!==1/u:p===p||u===u)&&(g(t,e,{name:f,type:"update",object:t,oldValue:p},n),e.values[c]=u));for(h=r.length;o&&h--;)null!==r[h]&&(g(t,e,{name:r[h],type:"delete",object:t,oldValue:l[h]},n),e.properties.splice(h,1),e.values.splice(h,1),o--)}},d=function(){r.size&&(r.forEach(h),o.forEach(v),u(d))},v=function(e,t){e.changeRecords.length&&(t(e.changeRecords),e.changeRecords=[])},y=function(e,t){return arguments.length<2&&(t=r.get(e)),t&&t.notifier||{notify:function(t){t.type;var n=r.get(e);if(n){var o,i={object:e};for(o in t)"object"!==o&&(i[o]=t[o]);g(e,n,i)}},performChange:function(t,n){if("string"!=typeof t)throw new TypeError("Invalid non-string changeType");if("function"!=typeof n)throw new TypeError("Cannot perform non-function");var o,i,c=r.get(e),a=n.call(arguments[2]);if(c&&h(c,e,t),c&&a&&"object"==typeof a){i={object:e,type:t};for(o in a)"object"!==o&&"type"!==o&&(i[o]=a[o]);g(e,c,i)}}}},b=function(e,t,n,r){var i=o.get(n);i||o.set(n,i={observed:f(),changeRecords:[]}),i.observed.set(e,{acceptList:r.slice(),data:t}),t.handlers.set(n,i)},g=function(e,t,n,r){t.handlers.forEach(function(t){var o=t.observed.get(e).acceptList;("string"!=typeof r||-1===a(o,r))&&a(o,n.type)>-1&&t.changeRecords.push(n)})};r=f(),o=f(),e.observe=function(t,n,r){if(!t||"object"!=typeof t&&"function"!=typeof t)throw new TypeError("Object.observe cannot observe non-object");if("function"!=typeof n)throw new TypeError("Object.observe cannot deliver to non-function");if(e.isFrozen&&e.isFrozen(n))throw new TypeError("Object.observe cannot deliver to a frozen function object");if(arguments.length>2){if(!r||"object"!=typeof r)throw new TypeError("Object.observe cannot use non-object accept list")}else r=i;return p(t,n,r),t},e.unobserve=function(e,t){if(null===e||"object"!=typeof e&&"function"!=typeof e)throw new TypeError("Object.unobserve cannot unobserve non-object");if("function"!=typeof t)throw new TypeError("Object.unobserve cannot deliver to non-function");var n,i=o.get(t);return i&&(n=i.observed.get(e))&&(i.observed.forEach(function(e,t){h(e.data,t)}),u(function(){v(i,t)}),1===i.observed.size&&i.observed.has(e)?o["delete"](t):i.observed["delete"](e),1===n.data.handlers.size?r["delete"](e):n.data.handlers["delete"](t)),e},e.getNotifier=function(t){if(null===t||"object"!=typeof t&&"function"!=typeof t)throw new TypeError("Object.getNotifier cannot getNotifier non-object");return e.isFrozen&&e.isFrozen(t)?null:y(t)},e.deliverChangeRecords=function(e){if("function"!=typeof e)throw new TypeError("Object.deliverChangeRecords cannot deliver to non-function");var t=o.get(e);t&&(t.observed.forEach(function(e,t){h(e.data,t)}),v(t,e))}}(Object,Array,this);
+Object.observe||function(e,t,n,r){"use strict";var o,i,c=["add","update","delete","reconfigure","setPrototype","preventExtensions"],a=t.isArray||function(e){return function(t){return"[object Array]"===e.call(t)}}(e.prototype.toString),f=t.prototype.indexOf?t.indexOf||function(e,n,r){return t.prototype.indexOf.call(e,n,r)}:function(e,t,n){for(var r=n||0;r<e.length;r++)if(e[r]===t)return r;return-1},s=n.Map!==r&&Map.prototype.forEach?function(){return new Map}:function(){var e=[],t=[];return{size:0,has:function(t){return f(e,t)>-1},get:function(n){return t[f(e,n)]},set:function(n,r){var o=f(e,n);-1===o?(e.push(n),t.push(r),this.size++):t[o]=r},"delete":function(n){var r=f(e,n);r>-1&&(e.splice(r,1),t.splice(r,1),this.size--)},forEach:function(n){for(var r=0;r<e.length;r++)n.call(arguments[1],t[r],e[r],this)}}},u=e.getOwnPropertyNames?function(){var t=e.getOwnPropertyNames;try{arguments.callee}catch(n){var r=(t(f).join(" ")+" ").replace(/prototype |length |name /g,"").slice(0,-1).split(" ");r.length&&(t=function(t){var n=e.getOwnPropertyNames(t);if("function"==typeof t)for(var o,i=0;i<r.length;)(o=f(n,r[i++]))>-1&&n.splice(o,1);return n})}return t}():function(t){var n,r,o=[];if("hasOwnProperty"in t)for(n in t)t.hasOwnProperty(n)&&o.push(n);else{r=e.hasOwnProperty;for(n in t)r.call(t,n)&&o.push(n)}return a(t)&&o.push("length"),o},p=n.requestAnimationFrame||n.webkitRequestAnimationFrame||function(){var e=+new Date,t=e;return function(n){return setTimeout(function(){n((t=+new Date)-e)},17)}}(),l=function(e,t,n){var r=o.get(e);r?g(e,r,t,n):(r=h(e),g(e,r,t,n),1===o.size&&p(d))},h=function(e,t){for(var n=u(e),r=[],i=0,t={handlers:s(),properties:n,values:r,notifier:b(e,t)};i<n.length;)r[i]=e[n[i++]];return o.set(e,t),t},v=function(e,t,n){if(e.handlers.size){var r,o,i,c,a,s,p,l=e.values,h=0;for(r=e.properties.slice(),o=r.length,i=u(t);h<i.length;)a=i[h++],c=f(r,a),s=t[a],-1===c?(w(t,e,{name:a,type:"add",object:t},n),e.properties.push(a),l.push(s)):(p=l[c],r[c]=null,o--,(p===s?0===p&&1/p!==1/s:p===p||s===s)&&(w(t,e,{name:a,type:"update",object:t,oldValue:p},n),e.values[c]=s));for(h=r.length;o&&h--;)null!==r[h]&&(w(t,e,{name:r[h],type:"delete",object:t,oldValue:l[h]},n),e.properties.splice(h,1),e.values.splice(h,1),o--)}},d=function(){o.size&&(o.forEach(v),i.forEach(y),p(d))},y=function(e,t){e.changeRecords.length&&(t(e.changeRecords),e.changeRecords=[])},b=function(e,t){return arguments.length<2&&(t=o.get(e)),t&&t.notifier||{notify:function(t){t.type;var n=o.get(e);if(n){var r,i={object:e};for(r in t)"object"!==r&&(i[r]=t[r]);w(e,n,i)}},performChange:function(t,n){if("string"!=typeof t)throw new TypeError("Invalid non-string changeType");if("function"!=typeof n)throw new TypeError("Cannot perform non-function");var i,c,a=o.get(e),f=arguments[2],s=f===r?n():n.call(f);if(a&&v(a,e,t),a&&s&&"object"==typeof s){c={object:e,type:t};for(i in s)"object"!==i&&"type"!==i&&(c[i]=s[i]);w(e,a,c)}}}},g=function(e,t,n,r){var o=i.get(n);o||i.set(n,o={observed:s(),changeRecords:[]}),o.observed.set(e,{acceptList:r.slice(),data:t}),t.handlers.set(n,o)},w=function(e,t,n,r){t.handlers.forEach(function(t){var o=t.observed.get(e).acceptList;("string"!=typeof r||-1===f(o,r))&&f(o,n.type)>-1&&t.changeRecords.push(n)})};o=s(),i=s(),e.observe=function(t,n,o){if(!t||"object"!=typeof t&&"function"!=typeof t)throw new TypeError("Object.observe cannot observe non-object");if("function"!=typeof n)throw new TypeError("Object.observe cannot deliver to non-function");if(e.isFrozen&&e.isFrozen(n))throw new TypeError("Object.observe cannot deliver to a frozen function object");if(o===r)o=c;else if(!o||"object"!=typeof o)throw new TypeError("Third argument to Object.observe must be an array of strings.");return l(t,n,o),t},e.unobserve=function(e,t){if(null===e||"object"!=typeof e&&"function"!=typeof e)throw new TypeError("Object.unobserve cannot unobserve non-object");if("function"!=typeof t)throw new TypeError("Object.unobserve cannot deliver to non-function");var n,r=i.get(t);return r&&(n=r.observed.get(e))&&(r.observed.forEach(function(e,t){v(e.data,t)}),p(function(){y(r,t)}),1===r.observed.size&&r.observed.has(e)?i["delete"](t):r.observed["delete"](e),1===n.data.handlers.size?o["delete"](e):n.data.handlers["delete"](t)),e},e.getNotifier=function(t){if(null===t||"object"!=typeof t&&"function"!=typeof t)throw new TypeError("Object.getNotifier cannot getNotifier non-object");return e.isFrozen&&e.isFrozen(t)?null:b(t)},e.deliverChangeRecords=function(e){if("function"!=typeof e)throw new TypeError("Object.deliverChangeRecords cannot deliver to non-function");var t=i.get(e);t&&(t.observed.forEach(function(e,t){v(e.data,t)}),y(t,e))}}(Object,Array,this);
 //# sourceMappingURL=object-observe-lite.min.map
\ No newline at end of file
diff --git a/dist/object-observe-lite.min.map b/dist/object-observe-lite.min.map
index da4b1de..d16ec70 100644
--- a/dist/object-observe-lite.min.map
+++ b/dist/object-observe-lite.min.map
@@ -1 +1 @@
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\ No newline at end of file
diff --git a/dist/object-observe.js b/dist/object-observe.js
index 9e51856..4228888 100644
--- a/dist/object-observe.js
+++ b/dist/object-observe.js
@@ -1,9 +1,9 @@
 /*!
  * Object.observe polyfill - v0.2.4
  * by Massimo Artizzu (MaxArt2501)
- * 
+ *
  * https://github.com/MaxArt2501/object-observe
- * 
+ *
  * Licensed under the MIT License
  * See LICENSE for details
  */
@@ -62,7 +62,7 @@
  * @returns {ChangeRecord|undefined}
  */
 
-Object.observe || (function(O, A, root) {
+Object.observe || (function(O, A, root, _undefined) {
     "use strict";
 
         /**
@@ -114,7 +114,7 @@ Object.observe || (function(O, A, root) {
          * @function createMap
          * @returns {Map}
          */
-        createMap = typeof root.Map === "undefined" || !Map.prototype.forEach ? function() {
+        createMap = root.Map === _undefined || !Map.prototype.forEach ? function() {
             // Lightweight shim of Map. Lacks clear(), entries(), keys() and
             // values() (the last 3 not supported by IE11, so can't use them),
             // it doesn't handle the constructor's argument (like IE11) and of
@@ -255,7 +255,7 @@ Object.observe || (function(O, A, root) {
             else {
                 data = createObjectData(object);
                 setHandler(object, data, handler, acceptList);
-                
+
                 if (observed.size === 1)
                     // Let the observation begin!
                     nextFrame(runGlobalLoop);
@@ -310,7 +310,7 @@ Object.observe || (function(O, A, root) {
                     odesc = data.descriptors[idx];
 
                 if ("value" in descr && (ovalue === value
-                        ? ovalue === 0 && 1/ovalue !== 1/value 
+                        ? ovalue === 0 && 1/ovalue !== 1/value
                         : ovalue === ovalue || value === value)) {
                     addChangeRecord(object, data, {
                         name: key,
@@ -338,7 +338,7 @@ Object.observe || (function(O, A, root) {
                     value = object[key],
                     ovalue = data.values[idx];
 
-                if (ovalue === value ? ovalue === 0 && 1/ovalue !== 1/value 
+                if (ovalue === value ? ovalue === 0 && 1/ovalue !== 1/value
                         : ovalue === ovalue || value === value) {
                     addChangeRecord(object, data, {
                         name: key,
@@ -569,7 +569,8 @@ Object.observe || (function(O, A, root) {
                     // If there's no data, the object has been unobserved
                     var data = observed.get(object),
                         prop, changeRecord,
-                        result = func.call(arguments[2]);
+                        thisObj = arguments[2],
+                        result = thisObj === _undefined ? func() : func.call(thisObj);
 
                     data && performPropertyChecks(data, object, changeType);
 
@@ -651,7 +652,7 @@ 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 (typeof acceptList === "undefined")
+        if (acceptList === _undefined)
             acceptList = defaultAcceptList;
         else if (!acceptList || typeof acceptList !== "object")
             throw new TypeError("Third argument to Object.observe must be an array of strings.");
@@ -736,4 +737,4 @@ Object.observe || (function(O, A, root) {
         }
     };
 
-})(Object, Array, this);
\ No newline at end of file
+})(Object, Array, this);
diff --git a/dist/object-observe.min.js b/dist/object-observe.min.js
index 672def9..3e6f7a4 100644
--- a/dist/object-observe.min.js
+++ b/dist/object-observe.min.js
@@ -1,2 +1,2 @@
-Object.observe||function(e,t,n){"use strict";var r,o,i=["add","update","delete","reconfigure","setPrototype","preventExtensions"],s=t.isArray||function(e){return function(t){return"[object Array]"===e.call(t)}}(e.prototype.toString),c=t.prototype.indexOf?t.indexOf||function(e,n,r){return t.prototype.indexOf.call(e,n,r)}:function(e,t,n){for(var r=n||0;r<e.length;r++)if(e[r]===t)return r;return-1},a="undefined"!=typeof n.Map&&Map.prototype.forEach?function(){return new Map}:function(){var e=[],t=[];return{size:0,has:function(t){return c(e,t)>-1},get:function(n){return t[c(e,n)]},set:function(n,r){var o=c(e,n);-1===o?(e.push(n),t.push(r),this.size++):t[o]=r},"delete":function(n){var r=c(e,n);r>-1&&(e.splice(r,1),t.splice(r,1),this.size--)},forEach:function(n){for(var r=0;r<e.length;r++)n.call(arguments[1],t[r],e[r],this)}}},f=e.getOwnPropertyNames?function(){var t=e.getOwnPropertyNames;try{arguments.callee}catch(n){var r=(t(c).join(" ")+" ").replace(/prototype |length |name /g,"").slice(0,-1).split(" ");r.length&&(t=function(t){var n=e.getOwnPropertyNames(t);if("function"==typeof t)for(var o,i=0;i<r.length;)(o=c(n,r[i++]))>-1&&n.splice(o,1);return n})}return t}():function(t){var n,r,o=[];if("hasOwnProperty"in t)for(n in t)t.hasOwnProperty(n)&&o.push(n);else{r=e.hasOwnProperty;for(n in t)r.call(t,n)&&o.push(n)}return s(t)&&o.push("length"),o},u=e.getPrototypeOf,p=e.defineProperties&&e.getOwnPropertyDescriptor,l=n.requestAnimationFrame||n.webkitRequestAnimationFrame||function(){var e=+new Date,t=e;return function(n){return setTimeout(function(){n((t=+new Date)-e)},17)}}(),h=function(e,t,n){var o=r.get(e);o?j(e,o,t,n):(o=d(e),j(e,o,t,n),1===r.size&&l(v))},d=function(t,n){var o,i=f(t),s=[],c=0,n={handlers:a(),frozen:e.isFrozen?e.isFrozen(t):!1,extensible:e.isExtensible?e.isExtensible(t):!0,proto:u&&u(t),properties:i,values:s,notifier:y(t,n)};if(p)for(o=n.descriptors=[];c<i.length;)o[c]=p(t,i[c]),s[c]=t[i[c++]];else for(;c<i.length;)s[c]=t[i[c++]];return 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diff --git a/dist/object-observe.min.map b/dist/object-observe.min.map
index 5d9c368..fe25e17 100644
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\ No newline at end of file
diff --git a/doc/index.md b/doc/index.md
index 8b494df..ddd655f 100644
--- a/doc/index.md
+++ b/doc/index.md
@@ -122,46 +122,11 @@ Notice the absence of the `async` attribute, as you would probably load it befor
 
 ## To do
 
-* Some deeper considerations about whether using `Object.prototype.watch` or not;
-* code benchmarks, documentation, optimization and cleanup.
+* code optimization and cleanup.
 
 ### `Array.observe`
 
-The [spec](http://arv.github.io/ecmascript-object-observe/#Array.observe) only states that `Array.observe` is just like `Object.observe` with a fixed accept list of `["add", "update", "delete", "splice"]`, and `Array.unobserve` is equivalent to `Object.unobserve`. That's fine, but where does that `"splice"` event come from?
-
-It's actually triggered by any operation on the array that *may* change the length of the array itself, like `push()` or `splice()`. These operations internally call `notifier.performChange("splice", ...)`, so one solution would be wrapping these methods in `Array.prototype` - or maybe better in the observed array itself - in a `performChange` call. Unfortunately, besides the obvious performance hit, this obtrusive intervention doesn't help detecting a `"splice"` change triggered by this operation:
-
-```js
-var fibonacci = [ 0, 1, 1, 2, 3 ];
-Array.observe(fibonacci, ...);
-fibonacci[5] = 5;
-```
-
-There's no way to trap this, and forcing developers to only use `Array.prototype` methods leaves me unsure (and it may even be ineffective if the arrays comes from another window frame, for example). So, still have to figure out what to do.
-
-Anyway, this is what wrapping an `Array` method would look like:
-
-```js
-(function(arrayPush) {
-    Array.prototype.push = function push(item) {
-        var args = arguments;
-        Object.getNotifier(this).performChange("splice", function() {
-            var index = this.length;
-            arrayPush.apply(this, args);
-
-            return {
-                index: index,
-                addedCount: args.length,
-                removed: []
-            };
-        }, this);
-
-        return this.length;
-    };
-})(Array.prototype.push);
-```
-
-If you're ok with this, you can add this kind of wrappers to your code, one for every method that triggers a `"splice"` change (namely: `push`, `pop`, `splice`, `shift` and `unshift`) and define `Array.observe`/`unobserve` as described above.
+The [spec](http://arv.github.io/ecmascript-object-observe/#Array.observe) only states that `Array.observe` is just like `Object.observe` with a fixed accept list of `["add", "update", "delete", "splice"]`, and `Array.unobserve` is equivalent to `Object.unobserve`. The `"splice"` event is especially tricky to deal with, but a polyfill for `Array.observe` that wraps the native array methods is available [here](https://github.com/MaxArt2501/array-observe), along with a documentation that explains the problem around the polyfill.
 
 ## Tests
 
diff --git a/package.json b/package.json
index 7ad056f..2ccf3e7 100644
--- a/package.json
+++ b/package.json
@@ -8,8 +8,8 @@
   },
   "scripts": {
     "test": "node_modules/.bin/mocha",
-    "benchmark": "node benchmark/benchmark.js",
-    "benchmark-lite": "node benchmark/benchmark-lite.js"
+    "benchmark": "node benchmark/benchmarks.js",
+    "benchmark-lite": "node benchmark/benchmarks-lite.js"
   },
   "repository": {
     "type": "git",
diff --git a/readme.md b/readme.md
index 3d4e362..91746ed 100644
--- a/readme.md
+++ b/readme.md
@@ -3,6 +3,8 @@ Object.observe polyfill
 
 `Object.observe` polyfill based on [EcmaScript 7 spec](http://arv.github.io/ecmascript-object-observe/). Read the [documentation](doc/index.md) for more detailed informations. Check the [changelog](changelog.md) to see what's changed.
 
+For a polyfill for `Array.observe`, you can find something [here](https://github.com/MaxArt2501/array-observe).
+
 ## Installation
 
 This polyfill extends the native `Object` and doesn't have any dependencies, so loading it is pretty straightforward:
